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

Related Mcqs:

1. Gases commonly referred to as ‘green house gases’ are:

   A. CH4, N2, CO2 and NH3
   B. CO2, O2, NO2 and NH3
   C. Chloro-fluoro-carbons, CO2, NH3 and N2
   D. CO2, chloro-fluoro-carbons, CH4 and NO2

2. Today, concentration of green house gases is high because of:

   A. Use of refrigerator
   B. Increased combustion of oil and coal
   C. Deforestation
   D. All the above

3. The non-green plants are as important as the green plants because they:

   A. Cause human disease
   B. Cause diseases of other plants
   C. Are useful in several industries
   D. Bring about decomposition of dead animals and plant remains

4. Green house effect refers to:

   A. Cooling of earth
   B. Trapping UV rays
   C. Production of cereals
   D. warming of earth

5. Green-house effect is due to the presence of:

   A. Ozone layer in the atmosphere
   B. Infra-red radiations
   C. Moisture in the atmosphere
   D. CO2 in the atmosphere

6. Green filler is used against which type of pollution?

   A. Air
   B. Water
   C. Soil
   D. Noise

7. Presence of SO2 in atmosphere is indicated by:

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

8. The particulate matter dispersed in the atmosphere is:

   A. Gaseous
   B. Mainly gaseous
   C. Non-gaseous
   D. Mainly non-gaseous

9. The presence of O3 in atmosphere of earth:

   A. Has been responsible for increasing the average global temperature in recent
   B. Is advantageous since it supplies O2 for people travelling in jets
   C. Hinders higher rate of photosynthesis
   D. Helps in checking the penetration of ultra violet rays to earth

10. The percentage of run off water reaching the ocean and evaporation into atmosphere is respectively:

    A. 27 & 73
    B. 73 & 27
    C. 37 & 63
    D. 63 & 37