The particulate matter dispersed in the atmosphere is:

Related Mcqs:

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

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

2. The major contributor to green house gases to the atmosphere is:

   A. Russia
   B. USA
   C. Brazil
   D. Germany

3. Presence of SO2 in atmosphere is indicated by:

   A. Mosses
   B. Liver worts
   C. Lichens
   D. Ferns

4. If there were no CO2 in the earth’s atmosphere, the temperature of earth’s surface would have been:

   A. same as present
   B. Less than the present
   C. Higher than the present
   D. Dependent on the amount of O2 in the atmosphere

5. A hydrocarbon having the following number of carbon atoms doesn’t exist freely in the atmosphere:

   A. C16
   B. C18
   C. Both (a) & (b)
   D. C10

6. The concentration of SO2 in the atmosphere is around:

   A. 0.01 ppm
   B. 0.001 ppm
   C. 0.5 ppm
   D. 0.75 ppm

7. The zone of atmosphere that lies near the ground is:

   A. Troposphere
   B. Stratosphere
   C. Homosphere
   D. Heterosphere

8. The lowest temperature in the atmosphere is recorded at:

   A. Mesopause
   B. Tropopause
   C. Stratopause
   D. All of these

9. 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

10. Acid rain is mainly caused by increased concentration (in atmosphere) of:

    A. Ozone and dust
    B. NH3 and SO3
    C. CO and SO3
    D. NO2 and SO2