quiz

Ozone Layer

The Ozone Layer: Earth’s Protective Shield

1. What is the chemical formula of ozone? 

  • A) O2  
  • B) H2O
  • C) CO2 
  • D)  O3
 D) O3 Explanation

2. At what altitude is the ozone layer primarily located? 

  • A) 85 to 600 km in thermosphere
  • B) Between 15 to 35 km above Earth's surface
  • C) Above the mesosphere
  • D) Near the Earth's surface 
B) Between 15 to 35 km above Earth's surface Explanation

3. Which region of the Earth is most affected by ozone depletion?

  • A) Equatorial regions 
  • B) Polar regions 
  • C) Coastal regions 
  • D) Mountainous regions
B) Polar regions Explanation

4. Which gas is primarily responsible for the depletion of the ozone layer?

  • A) Nitrogen dioxide
  • B) Oxygen 
  • C) Carbon dioxide 
  • D) Chlorofluorocarbons (CFCs)
D) Chlorofluorocarbons (CFCs) Explanation

5. What type of sunlight does molecular oxygen absorb to form ozone?

  • A) UV-A radiation
  • B) UV-B radiation
  • C) UV-C radiation
  • D) Visible light region
C) UV-C radiation Explanation

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