How does the widespread destruction of rainforests impact atmospheric CO2 levels?

• A. It results in a rise in CO2 levels
• B. It reduces CO2 levels
• C. There is no effect on CO2 levels
• D. CO2 levels fluctuate unpredictably

Answer: (A)

When forests burn or are cleared, a large amount of carbon stored in trees, roots, and soil is released back into the atmosphere as CO2. At the same time, the loss of forest means less vegetation to take up CO2 in the future. Rainforests hold vast carbon stocks and are active carbon sinks; destroying them both releases stored carbon and reduces the land’s capacity to remove CO2, leading to higher atmospheric CO2 levels. That’s why the best answer is a rise in CO2 levels. The other options don’t fit because destruction doesn’t lower CO2, leave it unchanged, or cause unpredictable fluctuations without a net upward trend.