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

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

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

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. Exposure of plants to high fluoride concentration results in necrosis or chlorosis characteristics in:

   A. Petiole but not in lamina
   B. Only mid rib of lamina
   C. Leaf tip and leaf margin
   D. Stems tips only

7. Norman Borlaug, the American agricultural scientist and plant pathologist developed the high yield strains that greatly increased crop yields. He laid the groundwork for the green revolution and was awarded the Nobel Prize for Peace in ________

   A. 1970
   B. 1972
   C. 1974
   D. 1976

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

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

9. Realising the need for a better management policy for wildlife, a high powered Wildlife, a high powered Wildlife Enquiry Committee, constituted by the Government of Pakistan presented their (draft) report in 1970, following which all the provinces and administrative unit promulgated their own Wildlife Act within administrative units promulgated their own Wildlife Act within a span of two years _______

   A. 1974 and 1975
   B. 1975 and 1976
   C. 1976 and 1977
   D. None of these

10. Which of the following gases is regarded as an atmospheric pollutant?

    A. O2
    B. O3
    C. SO2
    D. N2