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MCQs

Total Questions : 360 | Page 8 of 36 pages
Question 71. What is causes of increase in CO₂?
  1.    Volcanic Eruption
  2.    Deforestation
  3.    Photosynthesis
  4.    Burning of fossil fuel
 Discuss Question
Answer: Option D. -> Burning of fossil fuel
Answer: (d).Burning of fossil fuel
Question 72. What is dispersed solid or liquid particles of microscopic size in gaseous media?
  1.    Aerosols
  2.    PAN
  3.    Smog
  4.    Gaseous particles
 Discuss Question
Answer: Option A. -> Aerosols
Answer: (a).Aerosols
Question 73. Which type of inversion is common in winter than summer?
  1.    Frontal inversion
  2.    Subsidence Inversion
  3.    Radiation inversion
  4.    Temperature inversion
 Discuss Question
Answer: Option C. -> Radiation inversion
Answer: (c).Radiation inversion
Question 74. Which gas is produced when an organic matter is burnt?
  1.    Oxygen
  2.    Carbon dioxide
  3.    Methane
  4.    argon
 Discuss Question
Answer: Option B. -> Carbon dioxide
Answer: (b).Carbon dioxide
Question 75. Rubber cracking of tyres and electrical insulation is caused by
  1.    O₃ and PAN
  2.    Lead Poisoning
  3.    SO₂, NO₂, O₃
  4.    PAN
 Discuss Question
Answer: Option A. -> O₃ and PAN
Answer: (a).O₃ and PAN
Question 76. Which gas is produced by reduction of sulphur?
  1.    CO
  2.    CO₂
  3.    H₂S
  4.    Nox
 Discuss Question
Answer: Option C. -> H₂S
Answer: (c).H₂S
Question 77. Liquid particles formed by atomization of parent liquid is known as
  1.    Dust particles
  2.    Fumes
  3.    Spray
  4.    Fly Ash
 Discuss Question
Answer: Option A. -> Dust particles
Answer: (a).Dust particles
Question 78. COHb stands for
  1.    Carbonmonoglobin
  2.    Carboxyhemoglobin
  3.    Carbonmonooxide
  4.    Carbon dioxide
 Discuss Question
Answer: Option B. -> Carboxyhemoglobin
Answer: (b).Carboxyhemoglobin
Question 79. What is included in anthropogenic particulates ?
  1.    Viruses
  2.    Pollen
  3.    Metallic fumes
  4.    Bacteria
 Discuss Question
Answer: Option C. -> Metallic fumes
Answer: (c).Metallic fumes
Question 80. What is concentration of carbon dioxide in atmosphere?
  1.    650ppm
  2.    350ppm
  3.    450ppm
  4.    950ppm
 Discuss Question
Answer: Option B. -> 350ppm
Answer: (b).350ppm

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