Multiple choice

Which of the following factors is mainly responsible for the rise in temperature of the atmosphere?

  1. Increase in the atmospheric density

  2. Increase in the usage of renewable energy

  3. Increase in the amount of carbon dioxide

  4. Decrease in the atmospheric humidity
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Carbon dioxide is the primary greenhouse gas responsible for atmospheric warming through the greenhouse effect. Increased CO₂ from burning fossil fuels, deforestation, and industrial activities traps more heat in the atmosphere, causing global temperatures to rise. Other factors listed are either unrelated or would decrease warming.

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