Home PYQs UPPSC UPPSC MCQs Prelims 2014 (GS Paper I)

Question

Ozone protects biosphere from:

  1. Infra-red rays
  2. Ultraviolet rays
  3. X-rays
  4. Gama rays

Answer:

Option B: Ultraviolet rays

Detailed Solution:

The correct answer is “Ultraviolet rays”.

Ozone is a gas found in the Earth's stratosphere, and it acts as a natural shield, absorbing harmful ultraviolet (UV) radiation from the sun. UV radiation can cause skin cancer, cataracts, and damage to plants.