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MCQs

Total Questions : 198 | Page 8 of 20 pages
Question 71. Ozone at a ground level considered as a pollutant.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 72. Which atom released when CFCs molecules are broken from UV radiations?
  1.    Oxygen
  2.    Chlorine
  3.    Nitrogen
  4.    Arsenic
 Discuss Question
Answer: Option B. -> Chlorine
Answer: (b).Chlorine
Question 73. What is the full form of CFCs?
  1.    Chlorofluorocarbons
  2.    Chlorine fluorocarbons
  3.    Chromate fluorocarbons
  4.    Chlorofluridcarbons
 Discuss Question
Answer: Option A. -> Chlorofluorocarbons
Answer: (a).Chlorofluorocarbons
Question 74. Which is the first place where scientist found the thinning of ozone layer?
  1.    Atmosphere above Australia
  2.    Atmosphere above Antarctica
  3.    Atmosphere above India
  4.    Atmosphere above France
 Discuss Question
Answer: Option B. -> Atmosphere above Antarctica
Answer: (b).Atmosphere above Antarctica
Question 75. Which compound which used in fire extinguishers cause ozone layer depletion?
  1.    Sodium aluminates
  2.    Phosphates
  3.    Halons
  4.    Sulfurous silicate
 Discuss Question
Answer: Option C. -> Halons
Answer: (c).Halons
Question 76. Which one of the following cause ozone layer depletion?
  1.    Oxygen
  2.    Mercury
  3.    Sodium silicate
  4.    Methyl chloroform
 Discuss Question
Answer: Option D. -> Methyl chloroform
Answer: (d).Methyl chloroform
Question 77. The reduced in the use of CFCs completely prevents the ozone layer depletion.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 78. Which treaty was signed in 1987 for the protection of ozone layer?
  1.    The Montreal Protocol
  2.    The Kyoto Protocol
  3.    Ozone Summit
  4.    Wildlife Conservation Act
 Discuss Question
Answer: Option A. -> The Montreal Protocol
Answer: (a).The Montreal Protocol
Question 79. When do greenhouse gases cause global warming?
  1.    When their concentration is enhanced
  2.    When their concentration is decreased
  3.    When there are no greenhouse gases
  4.    When greenhouse gas released in balance way
 Discuss Question
Answer: Option A. -> When their concentration is enhanced
Answer: (a).When their concentration is enhanced
Question 80. What is called for the phenomenon when the radiation absorbed by the atmosphere is re-radiated towards the surface of the Earth?
  1.    Smog
  2.    Newton effect
  3.    Darwin effect
  4.    Greenhouse effect
 Discuss Question
Answer: Option D. -> Greenhouse effect
Answer: (d).Greenhouse effect

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