Ozone hole is substantial depletion of ozone in every year during__________________?

Related Mcqs:

1. In which of the following layer of atmosphere there is more thickness of ozone layer ?

   A. troposphere
   B. stratosphere
   C. mesosphere
   D. photosphere

2. Which of the following air pollutants is more dangerous for ozone layer ?

   A. CFC
   B. CO2
   C. CO
   D. Oxides of nitrogen

3. A single chlorine free radical can destroy how many ozone molecules ?

   A. 10
   B. 100
   C. 10000
   D. 100000

4. which Compound Destroy The OZONE ?

   A. CFCs
   B. CH3COOH
   C. BOTH A & B
   D. None Of These

   Submitted by: Ali Jan

5. The rate of formation of ozone depends on the flux of:

   A. visible radiation
   B. Ultra violet radiation
   C. Infrared radiation
   D. Gamma rays

   Submitted by: Said wali shah

6. Ozone is formed in the upper layer of the atmosphere from oxygen by action of:____________?

   A. Free radicals
   B. Cosmic rays
   C. Nitrogen oxides 
   D. UV -rays

   Submitted by: Said wali shah

7. Acid present in acid rain may be__________________?

   A. H2SO4
   B. HNO3
   C. both A and B
   D. none

8. Newspaper can be recycled again and again how many times ?

   A. 2
   B. 3
   C. 4
   D. 5

9. Which of the following is not a heavy industry ?

   A. iron
   B. fertilizer
   C. paper
   D. none

10. Which of the following gases is the main cause of acid rain ?

    A. CO
    B. NO2
    C. both a & b
    D. none of the above