Question

14. Which of the following pairs is a major contributor to global warming?

• A. carbon dioxide, nitrogen oxide
• B. methane, water vapor
• C. carbon dioxide, ozone
• D. carbon dioxide, water vapor

Answer 1

The correct option is D

carbon dioxide, water vapor

Explanation:

• Global Warming is an increase in global temperatures which occurs due to increased concentrations of greenhouse gases in the atmosphere, mainly from human activities such as burning fossil fuels.
• Global warming can result in the destruction of the environment and also adversely impact human health.
• It can also cause a rise in sea level, leading to the loss of coastal land, a change in precipitation patterns, increased risks of droughts and floods, etc.
• The greenhouse gases include carbon dioxide(CO₂), water vapor, methane, nitrous oxide, etc.
• Carbon dioxide and water vapor being the most abundant, hence becoming a major contributor to global warming.

Hence, the correct answer is (D).