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MCQs

Total Questions : 560 | Page 54 of 56 pages
Question 531. Lifespan of 'chloroflurocarbons' are long lasting in the
  1.    Atmosphere
  2.    Oceans
  3.    Rivers
  4.    Glaciers
 Discuss Question
Answer: Option A. -> Atmosphere
Answer: (a).Atmosphere
Question 532. 1 'GtC' is equal to
  1.    4.7 GtC
  2.    3.7 GtC
  3.    8.7 GtC
  4.    3.7 GtC
 Discuss Question
Answer: Option D. -> 3.7 GtC
Answer: (d).3.7 GtC
Question 533. Main source of green house effect includes deforestation and
  1.    Afforestation
  2.    Eutrophication
  3.    Acid rain
  4.    Burning of fossil fuel
 Discuss Question
Answer: Option D. -> Burning of fossil fuel
Answer: (d).Burning of fossil fuel
Question 534. Methane is produced by human, through fossil fuel production and
  1.    Boating
  2.    Farming
  3.    Re creational activities
  4.    Afforestation
 Discuss Question
Answer: Option B. -> Farming
Answer: (b).Farming
Question 535. Neutron is a component of most atomic nuclei without having a
  1.    Electron
  2.    Electric current
  3.    Electric charge
  4.    Proton
 Discuss Question
Answer: Option C. -> Electric charge
Answer: (c).Electric charge
Question 536. In 1952, London smog is referred to as
  1.    Aerosols
  2.    Pollutant smog
  3.    Commercial Smog
  4.    Industrial Smog
 Discuss Question
Answer: Option D. -> Industrial Smog
Answer: (d).Industrial Smog
Question 537. What is purpose of reforestation?
  1.    Controlling soil erosion
  2.    planting of forests on lands
  3.    Working on mining
  4.    All of above
 Discuss Question
Answer: Option B. -> planting of forests on lands
Answer: (b).planting of forests on lands
Question 538. Hectopascal (hPa) Unit of atmospheric pressure is equal to
  1.    Feets
  2.    Kelometers
  3.    Meters
  4.    Millibars
 Discuss Question
Answer: Option D. -> Millibars
Answer: (d).Millibars
Question 539. FAO' overestimated that, deforestation of tropical rainforests is about
  1.    0.4
  2.    0.24
  3.    0.23
  4.    0.5
 Discuss Question
Answer: Option C. -> 0.23
Answer: (c).0.23
Question 540. What causes global warming?
  1.    Nitrogen
  2.    Carbon dioxide
  3.    Oxygen
  4.    Argon
 Discuss Question
Answer: Option B. -> Carbon dioxide
Answer: (b).Carbon dioxide

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