Ozone layer in stratosphere is effected by:

Related Mcqs:

1. Ozone depletion in stratosphere shall result in:

   A. Forest fires
   B. Green house effect
   C. Global warming
   D. Increased incidence of skin cancer

2. Ozone layer of upper atmosphere is being destroyed by:

   A. Sulphur di-oxide
   B. Carbon di-oxide
   C. Chloro-fluoro-carbon
   D. Smog

3. What are the chief pollutants of the atmosphere which are most likely to deplete the ozone layer?

   A. Sulphur di-oxide
   B. Carbon di-oxide
   C. Nitrogen oxides and fluoro-carbons
   D. Carbon monoxide

4. Ozone layer having:

   A. The protective layer of ozone in the upper stratosphere, found at a level between 15 and 150 km above
   B. The Earth which prevents harmful ultraviolet B radiation which causes skin cancer and threatens plant life from reaching the ground
   C. Both (a) & (b)
   D. None of these

5. Regeneration may be effected by how many ways?

   A. Natural regeneration from seed
   B. Natural regeneration from coopice
   C. Artificial regeneration sowing and planting
   D. All of the above

6. Logging is effected by:

   A. Terrain
   B. Lean of trees
   C. Defect
   D. Wind fallen trees
   E. All of the above

7. Formation of ozone hole is maximum over:

   A. China
   B. Antarctica
   C. Europe
   D. Africa

8. The result of ozone hole is:

   A. Global warming
   B. Acid rain
   C. Greenhouse effect
   D. The UV radiations reach the earth

9. Ozone hole is refers to as:

   A. Hole in ozone layer
   B. Decrease in the ozone layer in troposphere
   C. Decrease in thickness of ozone layer in stratosphere
   D. Increase in the thickness of ozone layer in troposphere

10. Checking of re-radiating heat by atmospheric dust water vapour, ozone, CO2 is known as:

    A. Green house effect
    B. Radioactive effect
    C. Ozone layer effect
    D. Solar effect