Home PYQs UPPSC UPPSC MCQs Prelims 2017 (GS Paper I)

Question

Which one of the following atmospheric change takes place due to the greenhouse effect?

  1. Increase in carbon dioxide concentration in the atmosphere
  2. Increase in humidity in the atmosphere
  3. Increase in biological population
  4. Increase in wind speed

Answer:

Option A: Increase in carbon dioxide concentration in the atmosphere

Detailed Solution:

The correct answer is “Increase in carbon dioxide concentration in the atmosphere”.

The greenhouse effect is caused by the accumulation of greenhouse gases, such as carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O), in the atmosphere. These gases trap heat, leading to an increase in Earth's average temperature.