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

Related Mcqs:

1. 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

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

   A. Aug – Nov
   B. Sep – Nov
   C. Nov – Dec
   D. Dec – Jan

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

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

4. When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called_________________?

   A. ABAB (hexagonal)
   B. ABCABC (Cubic)
   C. Orthor hombic
   D. Rhombohedral

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

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

6. which Compound Destroy The OZONE ?

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

   Submitted by: Ali Jan

7. 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

8. Which of the following noble gases is not present in atmosphere?

   A. Argon
   B. Helium
   C. Radon
   D. Xenon

   Submitted by: Malik Asghar Hussain

9. Residence time of methane in the atmosphere is___________________?

   A. 3 – 7 days
   B. 2 -3 days
   C. 3 – 7 years
   D. 2 – 3 years

10. The process by which a substance absorbs moisture upon exposure to atmosphere is called?

    A. Efflorescence
    B. Dehydrogenation
    C. Desalination
    D. Deliquescence 

    Submitted by: Farhan Rana