World Geography SSC Cheat Sheet

Key Definitions

• Latitude: The angular distance north or south of the equator. ✅

• Longitude: The angular distance east or west of the Prime Meridian. ✅

• Equator: An imaginary line that divides the Earth into the Northern and Southern Hemispheres. ✅

• Tectonic Plates: Large sections of the Earth's crust that move and interact. ✅

Important Concepts

Earth's Structure

• Core: Innermost layer, composed mainly of iron and nickel. ✅

• Mantle: Thick layer of semi-solid rock between the core and the crust. ✅

• Crust: Thin outer layer of the Earth where we live. ✅

Climate Zones

• Tropical: Hot and humid, near the equator. ✅

• Temperate: Moderate climate with distinct seasons. ✅

• Polar: Cold climate, found near the poles. ✅

Key Formulas

• r: radius of the circle

Population Density = Population / Area

• Population: total number of people

• Area: total land area in square kilometers

Common Mistakes to Avoid

Common Mistake: Confusing latitude with longitude; remember latitude is horizontal, longitude is vertical.

Memory Tricks

Tip: "LATTITUDE" — Lines Are Topographically Traced In Two Units: Degrees East/West.

Key Diagrams

Latitude and Longitude
    N
    |
    |   (0°)
----+---- (Equator)
    | 
    |   (90°)
    S

Climate Zones
   Tropics
      |
   Temperate
      |
    Polar