MCQ on Heat Budget

1. What is another word for Earth’s heat budget?
(a). Energy balance
(b). Temperature balance
(c). Thermal regulation
(d). Heat balance

Answer
           A

2. What fraction of incoming solar radiation is immediately reflected back into space?
(a). 65%
(b). 50%
(c). 35%
(d). 25%

Answer
           C

3. Which parameter represents the reflectivity of a surface?
(a). Albedo
(b). Insolation
(c). Radiation
(d). Environment

Answer
           A

4. What does a high albedo value indicate?
(a). Total absorption
(b). Perfect reflection
(c). Partial absorption
(d). Partial reflection

Answer
           B

5. Which of the following surfaces has higher albedo?
(a). Asphalt
(b). Soil
(c). Sand
(d). Fresh snow

Answer
           D

6. Which gases in the atmosphere contribute to the greenhouse effect?
(a). Oxygen and nitrogen
(b). Carbon dioxide and oxygen
(c). Water vapor and methane
(d). Carbon dioxide and methane

Answer
           C

7. How much solar energy is absorbed by the Earth’s atmosphere and surface?
(a). 35 units
(b). 50 units
(c). 65 units
(d). 80 units

Answer
           C

8. Which principle dictates maintaining a constant temperature on Earth?
(a). Principle of energy conservation
(b). Principle of heat absorption
(c). Theory of atmospheric circulation
(d). Principle of heat emission

Answer
           A

9. What helps regulate the redistribution of heat from the tropics to the poles?
(a). Ocean currents
(b). Atmospheric circulation
(c). Temperature extremes
(d). Solar radiation

Answer
           C

10. Which concept provides a framework for understanding the interactions that control Earth’s climate system?
(a). Heat circulation
(b). Heat budget
(c). Climate variability
(d). Atmospheric processes

Answer
           B

11. What ensures the Earth’s heat budget over time?
(a). Rapid cooling
(b). Extreme heat
(c). Constant temperature
(d). Unstable climate

Answer
           C

12. What fraction of incoming solar radiation is absorbed by the Earth’s atmosphere and surface?
(a). 35%
(b). 50%
(c). 65%
(d). 80%

Answer
           C

13. Which gases are greenhouse gases?
(a). Nitrogen and oxygen
(b). Carbon dioxide and oxygen
(c). Water vapor and methane
(d). Carbon dioxide and nitrogen

Answer
           C

14. What does the albedo of a surface indicate?
(a). Absorption capacity
(b). Reflectivity
(c). Emission rate
(d). Communication

Answer
           B

15. What helps maintain the greenhouse effect?
(a). Extreme temperatures
(b). Climate stability
(c). Atmospheric pressure
(d). Ocean currents

Answer
           B

16. What is the primary form of energy reaching the Earth from the Sun?
(a). Longwave radiation
(b). Insolation
(c). Terrestrial radiation
(d). Albedo

Answer
           B

17. Which phenomenon traps heat in the Earth’s atmosphere?
(a). Heat absorption
(b). Albedo effect
(c). Greenhouse effect
(d). Solar reflection

Answer
           C

18. What is the primary mechanism for redistribution of absorbed solar energy?
(a). Ocean circulation
(b). Atmospheric circulation
(c). Greenhouse effect
(d). Albedo effect

Answer
           B

19. What does Earth’s atmosphere help control?
(a). Ocean currents
(b). Surface temperature
(c). Terrestrial radiation
(d). Solar insolation

Answer
           B

20. What is that fraction of incoming solar radiation that is reflected back into space called?
(a). Absorption
(b). Emission
(c). Insolation
(d). Albedo

Answer
           D

21. Which regions receive more solar energy, the equatorial or polar regions?
(a). Equatorial
(b). Polar
(c). Both receive equal energy
(d). None of the above

Answer
           A

22. Which concept helps to predict and mitigate the effects of climate change?
(a). Heat budget
(b). Atmospheric circulation
(c). Ocean circulation
(d). Greenhouse effect

Answer
           A

23. What ensures that Earth’s temperature remains relatively constant over time?
(a). Heat absorption
(b). Heat redistribution
(c). Heat emission
(d). Heat balance

Answer
           D

24. What percentage of incoming solar radiation is absorbed by the Earth’s atmosphere and surface?
(a). 35%
(b). 50%
(c). 65%
(d). 80%

Answer
           C

25. Which parameter indicates the fraction of incoming solar radiation that is reflected back into space?
(a). Albedo
(b). Insolation
(c). Radiation
(d). Environment

Answer
           A