Question

Which one or more of the following processes has/have resulted in increased greenhouse gases in the atmosphere over the last 100 years?

• A. Increasing levels of \( N_2 \) in the atmosphere due to increased denitrification.
• B. Increased release of \( CO_2 \) into the atmosphere due to the burning of fossil fuels.
• C. Increased release of methane into the atmosphere due to livestock.
• D. Increased release of methane from wetlands soil.

Hint:

Understanding the sources of greenhouse gases is critical for developing effective strategies to mitigate climate change.

Answer 1

The Correct Option is B, C, D

Step 1: Analyze the contribution of \( CO_2 \) from fossil fuels. The burning of fossil fuels is a major source of \( CO_2 \), significantly impacting global climate change. 
Step 2: Consider the methane emissions from livestock. Methane, a potent greenhouse gas, is emitted in large quantities from the digestive processes of ruminant livestock. 
Step 3: Evaluate methane release from wetlands. Natural wetlands are significant sources of methane due to anaerobic decomposition processes in their soils.