Physical Geography – Multiple Choice Questions (MCQs)

1. 37. What is air pressure?

   • A. The weight of the air above a given point
   • B. The temperature of the air
   • C. The density of the air
   • D. The speed of the air

2. 38. What are clouds?

   • A. Visible masses of water droplets or ice crystals suspended in the atmosphere
   • B. Dust particles in the air
   • C. Areas of high air pressure
   • D. Electrical storms

3. 39. What is the hydrosphere?

   • A. All the water on Earth
   • B. The solid part of the Earth
   • C. The gaseous layer surrounding the Earth
   • D. The living organisms on Earth

4. 40. What are oceans?

   • A. Large bodies of saltwater that cover most of the Earth's surface
   • B. Large freshwater lakes
   • C. Underground water reservoirs
   • D. Frozen water at the poles

5. 41. What is evaporation?

   • A. The process by which water changes from a liquid to a gas or vapor
   • B. The process by which water vapor changes to a liquid
   • C. The process by which ice changes directly to water vapor
   • D. The process by which water freezes

6. 42. What is condensation?

   • A. The process by which water changes from a gas to a liquid
   • B. The process by which liquid water becomes a gas
   • C. The process by which ice turns into liquid water
   • D. The process by which water vapor turns directly into ice

7. 43. What is precipitation?

   • A. Any form of water that falls from clouds to the Earth's surface
   • B. The evaporation of water
   • C. The condensation of water vapor
   • D. The movement of water in rivers

8. 44. What are tides?

   • A. The daily rise and fall of Earth's waters on its coastlines
   • B. Caused by wind patterns
   • C. Large ocean currents
   • D. The freezing and melting of polar ice

9. 45. What causes tides?

   • A. Earth's rotation
   • B. Solar radiation
   • C. The gravitational pull of the Moon and the Sun
   • D. Atmospheric pressure changes

10. 46. What is the biosphere?

    • A. All living organisms on Earth and the parts of the Earth where they live
    • B. The solid part of the Earth
    • C. The liquid part of the Earth
    • D. The gaseous layer surrounding the Earth