World & Physical Geography for UPSC Prelims
World and physical geography notes, concepts and facts for UPSC Prelims revision.
Unit 1. Introduction to Geography and Geographers
Unit 2. Astronomy
Observable Universe and Its Limits
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Structure of the Universe
·
Theories on the Origin of the Universe
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Past, Present, and Future of Universe
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Cosmic Inflation
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Dark Matter
·
Dark Energy
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Expansion of the Universe and Redshift
·
Fundamentals of Space-Time
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Galaxies and Their Types
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Structure and Evolution of Galaxies
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Active Galactic Nucleus (AGN)
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Black Holes
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Milky Way Galaxy
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Neighbors of Milky Way Galaxy
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Stars: Nature & Properties
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Formation of Stars and Stellar Evolution
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Structure of Stars
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Factors Influencing Evolution of Stars
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Nova and Supernova
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Neutron Stars
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X Ray Star
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Types of black Holes
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Binary Star
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Interstellar Medium
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Nebula
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Cosmic Rays
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Group, Clusters and Superclusters of Galaxies
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Solar System (Formation and Basics)
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Sun
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Planets
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Mercury
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Venus
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Mars
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Jupiter
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Saturn
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Uranus
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Neptune
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Asteroids
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Comets
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Meteorite & Meteors
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Kuiper Belt & its Objects
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Plutionos
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Earth Basics (Formation & Evolution)
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Detection of Black Holes
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Structure of Black Holes
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Number and Properties of Black Holes
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Wormholes
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Cosmic Strings
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Dwarf Galaxies
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Movement of Earth within Milky Way Galaxy
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View of Milky Way From Earth
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Andromeda Galaxy
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Radio Galaxies
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Large/Small Magellanic Clouds
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Types of Nebulae
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Quasars
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Asterism
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Closest Stars to Earth
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Sun’s Future as A Red Giant
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Cosmic Microwave Background (CMB)
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Composition of Universe
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Size and Composition of Solar System
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Structure of Sun
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Mass and Composition of Sun
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Rotation of Sun
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Planetary Rings
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Terrestrial Planets/Inner Planets
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Gas Giants/Outer Planets
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Ice Caps of Mars
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Martian Meteoroid ALH84001 of Mars
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Possibility of Life on Mars
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The Great Red Spot of Jupiter
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The Rings of Jupiter
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The Moons of Jupiter
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Effect of Jupiter on Life of Earth
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Protection of Inner Solar System by Jupiter
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The Ring System of Saturn
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The Moons of Saturn
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Asteroids Belt
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Important Galaxies
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Comet Shoemaker-Levy 9
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Sources of Meteors & Meteorites
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Types of Meteorites
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Meteor Showers
·
Sources of Cosmic Rays
Unit 3. Geology
Lithosphere
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Rocks
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Volcanoes
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Faulting
·
Earthquakes
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Geology
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Longitudes
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Radius and Circumference of Earth
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Structure of Earth
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Earth’s Crust
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Conrad Discontinuity
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Earth’s Mantle (Composition, Sections)
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Convective Material Circulation of Earth’s Mantle
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Earth’s Core (Formation, Compositions, Sections)
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Discovery of Earth’s Core
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Density of Various Earth’s Layers
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Earth’s Magnetic Field (Formation and Basics)
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Protection of Earth’s Lives by Magnetic Field
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Reversal of Earth’s Magnetic Fields
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Intensity Gradient of the Geomagnetic Field
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Magnetic Dip
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Geomagnetic Equator
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Equatorial Electrojet
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Earth’s Magnetosphere (Basics, Structure)
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Magnetopause, Magnetotail & Geomagnetic Poles
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Van Allen Belts
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Magnetospheric Storms
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Plate Tectonics (Introduction)
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Wegener’s Continental Drift Hypothesis
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Movement of Plate Tectonics
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Seafloor Spreading
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Subduction
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Faulting
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Faulting verses Folding
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The Lithospheric Plates System
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Plate Boundaries (Basics)
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Convergent Plate Boundaries
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Divergent Plate Boundaries
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Earthquakes
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Types of Earthquakes
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Foreshocks, Mainshocks, Aftershocks
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Hypocenter & Epicenter
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Mechanism of Tectonic Earthquakes
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Earthquake Belts
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Magnitude and Earthquake’s Intensity
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Ritcher Scale
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Moment Magnitude Scale
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Shindo Scale
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Medvedev-S-K Scale
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Seismic Waves (Basics and Types)
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How Seismic Waves Define Earth’s Interiors?
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Seismic Waves Determining Epicenter
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The Shadow Zone of Earthquake
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Liquefaction: Impact of Earthquake
Unit 4. Geomorphology
Rivers and Lakes
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Lakes
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Landforms
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Plains
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Landforms of Second Order
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External forces of Weathering
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Landforms made by rivers
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Alluvial Cones and Alluvial Fans
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Landforms made by Glaciers
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Landforms Made By Wind
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Landforms Made By Sea Waves
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Land Reliefs (Introduction and Basics)
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Geological Province (Introduction and Basics)
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Continental Shield
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Orogens and Introduction to Orogeny
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Types of Mountains (Volcanic, Folded, Fault-Block, Upwarped Mountains)
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Different Stages of Orogeny
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Plateaus
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Formation of Plateaus
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Types of Plateaus
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Importance of Plateaus
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Landforms (Meaning, Basics, Classification)
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Aeolian Landform (Types, Formation and More)
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Fluvial Landforms (Formation, Agents & More)
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Erosional Landforms (Formation, Types, Features & More)
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Coastal and Oceanic Landforms (Types, Features, Examples etc)
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Formation of Coastal Landforms
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Volcanic Landforms (Formation & More)
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Mountain and Glacier Landform (Types, Formation & More)
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Slope Landforms (Formation, Features & More)
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Rocks & Minerals (Formation & Basics)
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Igneous Rocks (Types, Sources and Examples)
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Sedimentary Rocks (Types, Sources and Examples)
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Metamorphic Rocks (Types, Sources and Examples)
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Limestone
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Types of Limestones
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Distribution of Limestone
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Other Sedimentary Rocks
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Exogenic Forces Affecting Landforms
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Endogenic Forces Affecting Land Forms/Formation
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Weathering
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Types of Weathering
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Physical Weathering
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Biological Weathering: Detailed
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Chemical Weathering
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Mass Wasting
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Types of Mass Wasting
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Induced Mass Wasting
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Erosion
Unit 5. Climatology and Meteorology
Temperature Anomaly or Thermal Anomaly
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Distance of the Earth from the Sun
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Inversion of Temperature
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Atmospheric Pressure and Winds
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Seasonal Distribution of Pressure
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The Westerlies
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Local Winds
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Monsoon Winds
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Jet Stream
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Wind direction and Wind Velocity
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Cyclones
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Atmospheric Moisture
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Clouds
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Rainfall
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Dry Climates
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Climate
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Structure of the Atmosphere
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Blizzard
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Earth Atmosphere (Introduction)
·
Composition of Atmosphere
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Troposphere & Tropopause
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Stratosphere & Stratopause
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Mesosphere & Mesopause
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Ionosphere/Thermosphere
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Concept of Aurora
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Exosphere
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Atmosphere and Insolation
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Effect of Atmosphere on Solar Radiation
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Radiation as a Method of Heat Transfer
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Convection as a Source of Heat Transfer
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Conduction as a Source of Heat Transfer
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Advection as a Source of Heat Transfer
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Latent Heat of Condensation
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Earth’s Albedo
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Earth Energy Budget
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Distribution of Temperature (Introduction)
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The Three Broad Temperature Zones
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Patterns of Global Isotherms
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Daily Variation of Temperature
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Annual Temperature Range
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Atmospheric Pressure (Introduction and Basics)
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Pressure Belts of Earth
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Creation of Pressure Belt
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Intertropical Convergence Zone (Doldrums)
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Subtropical High/Horse Latitude
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North & South Belt Regions
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Global Winds
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Trade Winds
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Westerlies (Detailed)
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Polar Easterlies
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Local Winds (Introduction & Features)
·
Local Winds Near Mountains
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List of Major Local Winds
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Monsoon Mechanism (Traditional View)
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Monsoon Mechanism (Modern View)
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Rainfall (Introduction & Basics)
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Cooling (Adiabatic, Convectional, Radiational & Evaporative)
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Convectional Rainfall
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Cyclonic/Frontal Rainfall
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Orographic Rainfall
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Distribution of Rainfall
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Air Mass
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Impact of Airmass Movement on Weather & Winds
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Fronts
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Frontogenesis & Frontolysis
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Types of Fronts (Cold, Warm, Occluded)
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Formation of Cyclones
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Difference between Tropical and Extra-Tropical Cyclone
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Tropical Cyclone
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Types of Tropical Cyclones (Tropical Depression, Storm & Cyclone)
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Impact of Tropical Cyclone over Land & Cold Water
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Project Stormfury
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Naming of Cyclones
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Anti-Cyclones
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Temperate Cyclones
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Tornado
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Formation of Tornado
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Detection of Tornado
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What is Fujita Scale?
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What is Torro Scale?
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Infrasonic Signature of Tornadoes
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Electromagnetic Spectrum and Tornadoes
Unit 6. Hydrology
Hydrology & Hydrosphere
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Hydrological Cycle (Concept and Components)
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Water Budget and Water Balance
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Distribution of Water on Earth
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Global Water Resources
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Residence Time of Water
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Types of Water (Blue, Green, Grey Water)
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Precipitation (Forms and Measurement)
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Global Distribution of Rainfall
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Infiltration and Soil Water
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Soil Moisture and Soil Water Movement
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Runoff (Concept)
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Drainage Basin
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Groundwater: Occurrence and Distribution
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Types of Aquifers
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Aquiclude, Aquitard, Aquifuge
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Water Table and Groundwater Levels
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Groundwater Flow
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Recharge and Discharge of Groundwater
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Springs
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Lakes (Formation and Types)
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Lake Water Balance
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Eutrophication of Lakes
Unit 7. Oceanography
The Pacific Ocean
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The Atlantic Ocean
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The Indian Ocean
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Ocean Waves
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Currents of the Pacific Ocean
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Currents of the Atlantic Ocean
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Currents of the Indian Ocean
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Effects of Ocean Currents
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Elnino, La Nina and Southern Oscillation
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Tides (Introduction)
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Stages of Tides
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Spring Tides and Neap Tides
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Apogean Tides and Perigean Tides
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Daily Frequency of Tides
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Duration & Frequency of Daily Tides
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Impact on Tides if there was NO Moon?
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The Tides which are NOT Tides (Storm, Rip, Tsunami Tides)
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Important Terms Related to Tides
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Tidal Ports (Prevention of River Freezing and Siltation)
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Do Tides Affect Earth’s Magnetic Field?
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Why are there NO High and Low Tides at Equator?
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Use of Tides in Navigation
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Use of Tides in Fishing
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Oceanography (Introduction)
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Ocean Relief & its Basic Features
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Some Major Points in Oceans of the World
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Types of Ocean Relief (Detailed)
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Lagoons
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Coral Reefs and Important Observations on it
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Beach
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Ocean/Marine Sediments
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Types of Marine Sediments
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Neritic and Pelagic Deposits
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Resources from Ocean Sediments
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Ocean Temperature
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Trend in Ocean Temperature
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Measurement of Temperature
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Layers of Temperature in Tropics
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Daily Range of Temperature
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Annual Range of Temperature
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Distribution Pattern of Temperature
·
Nature of Ocean Temperature from Latitudes to Equator
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Types of Temperature Distribution (Horizontal and Vertical)
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Salinity of Ocean Water (Introduction)
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Factors Affecting Salinity of Water
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Horizontal Distribution of Salinity of Water
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Vertical Distribution of Salinity of Water
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Ocean Currents
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Origin of Ocean Currents
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Difference Between Ocean Drifts, Currents and Streams
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Warm and Cold Currents
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Surface and Deep Currents
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Important Currents of Atlantic Ocean
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Relationship Between Ocean Currents and Global Surface Wind System
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Indian Ocean Currents
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Coriolis Force and its Effects on Ocean Currents
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Impact of Temperature on Ocean Currents
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Impact of Salinity on Ocean Currents
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Impact of Air Pressure and Winds on Ocean Currents
Unit 8. Glaciology
Unit 9. Pedology
Soil
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Soil Taxonomy or Classification
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Soils
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Soil Degradation
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Soil Conservation
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Nature of Soil
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What is Soil Made Of?
·
Humus
·
Soil Texture
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Sandy Soil (Type of soil)
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Clayey Soil (Soil Type)
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Loamy Soil (Soil Type)
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Silt Soil (Soil Type)
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Soil pH
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Increasing & Decreasing Soil pH
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The Problem of Alkaline Soil and its Gypsum Treatment
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Soil Air & Its Importance
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Soil Fertility
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Soil Horizon (O, A, B, C & R Horizons)
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Soil Taxonomy
·
Types of Soil Taxonomy
Unit 10. Population Geography
Distribution of Population
·
World Population’Growth and Distribution
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Population Structure
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Population Problems of Developing Countries
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Population Problems of Developed Countries
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Migration
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Consequences of Migration
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Literacy
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Religious Composition
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Sex Ratio
·
Urbanization and Suburbanization
Unit 11. Settlement Geography
Settlement Geography: Definition, Scope and Importance
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Types of Settlements
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Factors Influencing Settlement Location
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Rural Settlements: Types and Patterns
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Factors affecting rural settlements
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Rural house types & patterns
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Urban Settlements: Types and Patterns
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Classification of towns
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Urban Theories & Models
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Land use patterns in cities
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Urban Expansion: Urban fringe & suburbs
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Satellite towns
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Urbanization and Suburbanization
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Counter-urbanization
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Urban sprawl
Unit 12. Economic Geography
Economic Geography
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Natural Resources
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Pastoralism
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Agriculture
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Various Forms of Agriculture
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Rail Network in the World
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Commercial Crops
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Major Crops
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Plantation Crops
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Fruits, Vegetable and Spices
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Mineral Resources
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Important Minerals of the World
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Conventional Sources of Energy
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Non-Conventional Sources of Energy
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Manufacturing’Industries
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Engineering Industries
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Factory Farming
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Livestock
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Dairy Sector, Poultry farming and Fishing
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Iron and Steel Industry
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Metals Smelting
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Industrial Machinery
·
Railway Equipment
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Different Industries
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Drugs, Pharmaceutical and Forest Based Industries
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Transport and Communications
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Factors Affecting Railways
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National Highways
·
Distribution of Railways
Unit 13. Regional Geography - Asia
Countries of Asia
·
Plate Tectonics and Volcanism of Asia
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Deserts of Asia
·
Climate Regions of Asia
·
Monsoon System of Asia
·
Natural Vegetation of Asia
·
Soil Types of Asia
·
Glaciers of Asia
·
Water Resources of Asia
·
Major Population Clusters of Asia
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Major Cities of Asia
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Agricultural Regions of Asia
·
Mineral Resources of Asia
·
Energy Resources of Asia
·
Industrial Regions of Asia
Unit 14. Regional Geography - Africa
Countries of Africa
·
Plate Tectonics and Rift Valley System of Africa
·
Deserts of Africa
·
Climate Regions of Africa
·
Natural Vegetation of Africa
·
Soil Types of Africa
·
Water Resources of Africa
·
Major Population Clusters of Africa
·
Major Cities of Africa
·
Agricultural Regions of Africa
·
Mineral Resources of Africa
·
Energy Resources of Africa
·
Industrial Regions of Africa
Unit 15. Regional Geography - Europe
Countries of Europe
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Plate Tectonics of Europe
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Climate Regions of Europe
·
Natural Vegetation of Europe
·
Soil Types of Europe
·
Glaciers of Europe
·
Water Resources of Europe
·
Major Population Clusters of Europe
·
Major Cities of Europe
·
Agricultural Regions of Europe
·
Mineral Resources of Europe
·
Energy Resources of Europe
·
Industrial Regions of Europe
Unit 16. Regional Geography - North America
Countries of North America
·
Plate Tectonics of North America
·
Deserts of North America
·
Climate Regions of North America
·
Natural Vegetation of North America
·
Soil Types of North America
·
Glaciers & Ice Sheets of North America
·
Water Resources of North America
·
Major Population Clusters of North America
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Major Cities of North America
·
Agricultural Regions of North America
·
Mineral Resources of North America
·
Energy Resources of North America
·
Industrial Regions of North America
Unit 17. Regional Geography - South America
Countries of South America
·
Plate Tectonics of South America
·
Deserts of South America
·
Climate Regions of South America
·
Natural Vegetation of South America
·
Soil Types of South America
·
Glaciers of South America
·
Water Resources of South America
·
Major Population Clusters of South America
·
Major Cities of South America
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Agricultural Regions of South America
·
Mineral Resources of South America
·
Energy Resources of South America
·
Industrial Regions of South America
Unit 18. Regional Geography - Australia & Oceania
Countries of Australia & Oceania
·
Plate Tectonics of Australia & Oceania
·
Deserts of Australia
·
Climate Regions of Australia & Oceania
·
Natural Vegetation of Australia & Oceania
·
Soil Types of Australia & Oceania
·
Glaciers of Oceania
·
Water Resources of Australia & Oceania
·
Major Population Clusters of Australia & Oceania
·
Major Cities of Australia & Oceania
·
Agricultural Regions of Australia
·
Mineral Resources of Australia
·
Energy Resources of Australia
·
Industrial Regions of Australia
Unit 19. Regional Geography - Antarctica
Unit 20. Regional Geography - Arctic
Countries/Regions of the Arctic
·
Climate of the Arctic
·
Ice Sheets and Sea Ice of the Arctic
·
Natural Vegetation of the Arctic (Tundra)
·
Soil Types of the Arctic (Permafrost)
·
Water Bodies of the Arctic
·
Population and Settlements in the Arctic
·
Resources of the Arctic
·
Energy Resources of the Arctic