MCQs with answers on “Carbon Sequestration: Role of Forests in Mitigating Climate Change.”

1. Which of the following is the primary mechanism by which forests contribute to carbon sequestration?

• a) Photosynthesis
• b) Respiration
• c) Evapotranspiration
• d) Combustion

Answer: a) Photosynthesis

2. Which gas is primarily absorbed by forests during the process of carbon sequestration?

• a) Oxygen
• b) Carbon dioxide
• c) Methane
• d) Nitrogen

Answer: b) Carbon dioxide

3. What percentage of global terrestrial carbon storage is found in forests?

• a) 5%
• b) 10%
• c) 30%
• d) 80%

Answer: c) 30%

4. Which of the following forest types is most effective in carbon sequestration?

• a) Tropical forests
• b) Temperate forests
• c) Boreal forests
• d) All of the above

Answer: d) All of the above

5. What role does forest management play in enhancing carbon sequestration?

• a) It reduces carbon absorption
• b) It has no effect
• c) It enhances carbon storage
• d) It leads to deforestation

Answer: c) It enhances carbon storage

6. Which of the following practices can help maximize carbon sequestration in forests?

• a) Deforestation
• b) Reforestation and afforestation
• c) Industrial agriculture
• d) Urbanization

Answer: b) Reforestation and afforestation

7. What is the role of soil in carbon sequestration?

• a) It stores a large portion of carbon
• b) It has no role in carbon sequestration
• c) It releases carbon back into the atmosphere
• d) It absorbs oxygen from the atmosphere

Answer: a) It stores a large portion of carbon

8. How does forest biomass contribute to carbon sequestration?

• a) It converts carbon into oxygen
• b) It releases carbon back into the atmosphere
• c) It stores carbon in trees, roots, and soils
• d) It prevents carbon storage

Answer: c) It stores carbon in trees, roots, and soils

9. Which global agreement recognizes forests as a key part of efforts to combat climate change?

• a) Kyoto Protocol
• b) Paris Agreement
• c) Montreal Protocol
• d) Stockholm Convention

Answer: b) Paris Agreement

10. Which of the following is a carbon sink?

• a) Oceans
• b) Urban areas
• c) Industrial zones
• d) All of the above

Answer: a) Oceans

11. What is ‘blue carbon’ in the context of climate change mitigation?

• a) Carbon stored in soil
• b) Carbon stored in aquatic ecosystems like mangroves
• c) Carbon stored in forests
• d) Carbon in the atmosphere

Answer: b) Carbon stored in aquatic ecosystems like mangroves

12. Which of the following is a potential risk of carbon sequestration through forests?

• a) Deforestation leading to increased emissions
• b) Forests becoming carbon sources after forest fires
• c) Both a and b
• d) None of the above

Answer: c) Both a and b

13. Which species of tree is particularly effective in carbon sequestration due to its rapid growth?

• a) Oak
• b) Bamboo
• c) Pine
• d) Mahogany

Answer: b) Bamboo

14. How does deforestation affect carbon sequestration?

• a) It enhances carbon sequestration
• b) It reduces carbon absorption
• c) It has no effect
• d) It stabilizes carbon levels

Answer: b) It reduces carbon absorption

15. What is the role of afforestation in carbon sequestration?

• a) It releases carbon into the atmosphere
• b) It increases carbon storage
• c) It has no role in carbon sequestration
• d) It leads to deforestation

Answer: b) It increases carbon storage

16. Which of the following regions has the highest carbon sequestration potential through forests?

• a) Africa
• b) South America
• c) Asia
• d) North America

Answer: b) South America

17. What is the estimated amount of carbon dioxide that forests absorb annually?

• a) 5 billion tons
• b) 10 billion tons
• c) 20 billion tons
• d) 50 billion tons

Answer: b) 10 billion tons

18. Which process in the carbon cycle involves the absorption of carbon dioxide by plants?

• a) Photosynthesis
• b) Respiration
• c) Decomposition
• d) Combustion

Answer: a) Photosynthesis

19. Which of the following is the primary greenhouse gas that forests help mitigate through carbon sequestration?

• a) Methane
• b) Nitrous oxide
• c) Carbon dioxide
• d) Ozone

Answer: c) Carbon dioxide

20. How does forest biodiversity impact carbon sequestration?

• a) It reduces carbon storage capacity
• b) It enhances the ability of forests to store carbon
• c) It has no impact on carbon storage
• d) It only affects carbon release

Answer: b) It enhances the ability of forests to store carbon

21. What is the role of forest fires in the carbon sequestration process?

• a) They increase carbon storage in the long term
• b) They release large amounts of carbon into the atmosphere
• c) They help in storing carbon in the soil
• d) They have no effect

Answer: b) They release large amounts of carbon into the atmosphere

22. Which of the following is NOT a method of enhancing carbon sequestration in forests?

• a) Agroforestry
• b) Improved forest management
• c) Deforestation
• d) Reforestation

Answer: c) Deforestation

23. What is the potential role of forest carbon credits in climate change mitigation?

• a) They contribute to carbon emissions
• b) They are used to offset carbon emissions through financial incentives
• c) They promote deforestation
• d) They reduce the global forest cover

Answer: b) They are used to offset carbon emissions through financial incentives

24. Which forest biome is most vulnerable to climate change and carbon sequestration disruption?

• a) Tropical rainforests
• b) Temperate forests
• c) Boreal forests
• d) Dry forests

Answer: c) Boreal forests

25. How does forest degradation affect carbon sequestration?

• a) It increases the amount of carbon stored
• b) It reduces the carbon sequestration potential
• c) It has no impact
• d) It releases carbon in small amounts

Answer: b) It reduces the carbon sequestration potential

26. What is the main benefit of carbon sequestration by forests for climate change mitigation?

• a) Reduces global temperatures
• b) Reduces atmospheric carbon dioxide levels
• c) Increases oxygen levels in the atmosphere
• d) All of the above

Answer: b) Reduces atmospheric carbon dioxide levels

27. Which of the following is a global initiative to reduce carbon emissions through forest management?

• a) REDD+ (Reducing Emissions from Deforestation and Forest Degradation)
• b) COP21
• c) Kyoto Protocol
• d) SDGs

Answer: a) REDD+ (Reducing Emissions from Deforestation and Forest Degradation)

28. What is the main challenge in using forests as a solution to mitigate climate change?

• a) Forests are unable to store enough carbon
• b) Deforestation and forest degradation
• c) Lack of funding for reforestation
• d) All of the above

Answer: d) All of the above

29. Which of the following activities can prevent carbon sequestration in forests?

• a) Sustainable logging
• b) Reforestation
• c) Forest conservation
• d) Uncontrolled deforestation

Answer: d) Uncontrolled deforestation

30. Which international body provides guidelines and frameworks for forest-based climate change mitigation?

• a) World Health Organization (WHO)
• b) United Nations Environment Programme (UNEP)
• c) Intergovernmental Panel on Climate Change (IPCC)
• d) World Trade Organization (WTO)

Answer: c) Intergovernmental Panel on Climate Change (IPCC)