Multiple choice

Directions: Choose the appropriate answer from the options given below:

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

The increase in atmospheric carbon dioxide concentration is the primary factor responsible for rising global temperatures due to the enhanced greenhouse effect. CO2 traps heat in the atmosphere that would otherwise escape to space. The other options are incorrect: renewable energy reduces warming, atmospheric density changes are not the main driver, and humidity is not decreasing.