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MCQs

Total Questions : 119 | Page 4 of 12 pages
Question 31. Which of the following gases has the highest radiative efficiency?
  1.    Sulphur hexafluoride
  2.    Carbon tetrachloride
  3.    PFTBA
  4.    CFC
 Discuss Question
Answer: Option C. -> PFTBA
Answer: (c).PFTBA
Question 32. Anthropogenic sources of carbon dioxide are 20 times greater than natural carbon dioxide sources.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 33. What does the method of “enhanced weathering” infer?
  1.    It is a method used to spray sulphate aerosols to reduce the greenhouse effect
  2.    It is a method of cloud seeding that is done to reduce the contribution of clouds to greenhouse effect
  3.    It is a method used to remove CO₂from the air
  4.    None of the mentioned
 Discuss Question
Answer: Option D. -> None of the mentioned
Answer: (d).None of the mentioned
Question 34. What is the reason for extreme difference in temperatures at day and night in deserts?
  1.    Carbon dioxide concentrations are low in desert regions, therefore heat escapes easily
  2.    Sand has high heat conduction properties
  3.    Lack of moisture leads to escape of heat
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> Lack of moisture leads to escape of heat
Answer: (c).Lack of moisture leads to escape of heat
Question 35. Which of the following compounds have the highest GWP?
  1.    Nitrous oxide
  2.    CFC
  3.    Water vapour
  4.    Sulphur hexafluoride
 Discuss Question
Answer: Option D. -> Sulphur hexafluoride
Answer: (d).Sulphur hexafluoride
Question 36. At what concentration (in ppm), is nitrogen present in the atmosphere?
  1.    780,840
  2.    390,420
  3.    78,084
  4.    900,000
 Discuss Question
Answer: Option A. -> 780,840
Answer: (a).780,840
Question 37. “Roaring forties” is the term used to describe which of the following winds?
  1.    East-to-west air winds in the southern hemisphere
  2.    West-to east air winds in the northern hemisphere
  3.    East-to-west air winds in the northern hemisphere
  4.    West-to-east air winds in the southern hemisphere
 Discuss Question
Answer: Option D. -> West-to-east air winds in the southern hemisphere
Answer: (d).West-to-east air winds in the southern hemisphere
Question 38. In the lower layers of atmosphere, what range of wavelengths of light is predominant?
  1.    Less than 100 nm
  2.    Greater than 300 nm
  3.    Between 100-300 nm
  4.    All wavelengths are equally present
 Discuss Question
Answer: Option B. -> Greater than 300 nm
Answer: (b).Greater than 300 nm
Question 39. What is the region of mild and irregular wind in the equatorial region known as?
  1.    Trade winds
  2.    Westerlies
  3.    Doldrums
  4.    Easterlies
 Discuss Question
Answer: Option C. -> Doldrums
Answer: (c).Doldrums
Question 40. What does the ratio of the mass of water vapour to mass of air indicate?
  1.    Absolute humidity
  2.    Specific humidity
  3.    Relative humidity
  4.    Approximate humidity
 Discuss Question
Answer: Option B. -> Specific humidity
Answer: (b).Specific humidity

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