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Total Questions : 119 | Page 5 of 12 pages
Question 41. What does the process of carbon sequestration mean?
  1.    Removal of CO₂ from the atmosphere
  2.    Storage of CO₂ by depositing in reservoir
  3.    Removal of CO₂ from the atmosphere & Storage of CO₂ by depositing in reservoir
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Removal of CO₂ from the atmosphere & Storage of CO₂ by depositing in reservoir
Answer: (c).Removal of CO₂ from the atmosphere & Storage of CO₂ by depositing in reservoir
Question 42. What is the average concentration of ozone in the ozone layer of the atmosphere?
  1.    Nearly 100%
  2.    Greater than 90%
  3.    Between 10-50%
  4.    Less than 10ppm
 Discuss Question
Answer: Option D. -> Less than 10ppm
Answer: (d).Less than 10ppm
Question 43. Which of the following greenhouse gas is contributed by cattle farming?
  1.    Nitrous oxide
  2.    Methane
  3.    Carbon monoxide
  4.    All of the mentioned
 Discuss Question
Answer: Option B. -> Methane
Answer: (b).Methane
Question 44. Which of the following is a sink for carbon?
  1.    Wetlands
  2.    Old oil fields
  3.    Saline waterbodies
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned
Question 45. Volcanic eruptions contribute to the global greenhouse phenomenon.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 46. Who discovered the ozone layer?
  1.    Henri Buisson & Charles Fabry
  2.    Carl Sagan & Charles Fabry
  3.    G.M.B Dobson
  4.    Carl Sagan & G.M.B Dobson
 Discuss Question
Answer: Option A. -> Henri Buisson & Charles Fabry
Answer: (a).Henri Buisson & Charles Fabry
Question 47. Which of the following devices can be used to measure ozone in the stratosphere from the ground?
  1.    Spectrometer
  2.    Photometer
  3.    Spectrophotometer
  4.    Spectro-ozonometer
 Discuss Question
Answer: Option C. -> Spectrophotometer
Answer: (c).Spectrophotometer
Question 48. The ozone layer absorbs what range of wavelengths of the sun’s radiation?
  1.    0.80 nm – 1.50 nm
  2.    200 nm – 315 nm
  3.    450 nm – 570 nm
  4.    600 nm – 750 nm
 Discuss Question
Answer: Option B. -> 200 nm – 315 nm
Answer: (b).200 nm – 315 nm
Question 49. Between what altitudes, is the ozone layer found in highest concentrations?
  1.    10-20km
  2.    20-40km
  3.    40-55km
  4.    55-70km
 Discuss Question
Answer: Option B. -> 20-40km
Answer: (b).20-40km
Question 50. Who discovered the formation of ozone from photochemical reactions?
  1.    G.M.B Dobson
  2.    Sydney Chapman
  3.    Carl Sagan
  4.    Henri Buisson
 Discuss Question
Answer: Option A. -> G.M.B Dobson
Answer: (a).G.M.B Dobson

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