2nd Year Physics Chapter 10 Test24. Earth’s Climate

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Lithosphere is composed mainly of:
   1. Gases
   2. Rocks and minerals
   3. Ice
   4. Water
2. The Coriolis force equation is:
   1. Fc = 2mνω sinθ
   2. Fc = mgh
   3. Fc = mv²/r
   4. Fc = F/A
3. In the northern hemisphere, Coriolis force deflects moving objects to the:
   1. Left
   2. Right
   3. Upward
   4. Downward
4. Horizontal movement of ocean water is called:
   1. Upwelling
   2. Downwelling
   3. Currents
   4. Thermohaline circulation
5. The cryosphere refers to regions where:
   1. Rocks form
   2. Water is solid as ice or snow
   3. Plants grow
   4. Volcanoes erupt
6. Variations in solar radiation due to sunspots cause:
   1. Ocean oscillations
   2. Climate changes on shorter time scales
   3. Greenhouse gas emissions
   4. Volcanic activity
7. Which feedback amplifies initial changes in climate?
   1. Neutral feedback
   2. Positive feedback
   3. Negative feedback
   4. Zero feedback
8. Increased CO₂ stimulating plant growth is an example of:
   1. Positive feedback
   2. Negative feedback
   3. Solar variability
   4. External forcing
9. The hydrosphere covers about what percent of Earth’s surface?
   1. 0.5
   2. 0.6
   3. 0.7
   4. 0.8
10. Earth’s energy budget refers to:
    1. The amount of sunlight Earth reflects
    2. The balance between incoming solar and outgoing terrestrial radiation
    3. The storage of heat in oceans
    4. The energy used by plants for photosynthesis