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ENVIRONMENTAL SCIENCE MCQs

Total Questions : 2671 | Page 43 of 268 pages
Question 421. The strongest radiation inversions occur when
  1.    Skies are overcast
  2.    Skies are partly cloudy
  3.    Skies are clear
  4.    Precipitation is falling
 Discuss Question
Answer: Option C. -> Skies are clear
Question 422. The darkening of the skin due to arsenic poisoning is called
  1.    Black syndrome
  2.    Diffuse melanosis
  3.    Skin scaling
  4.    None of these
 Discuss Question
Answer: Option B. -> Diffuse melanosis
Question 423. A change of one degree on the Celsius scale is ____ a change of one degree on the Fahrenheit scale.
  1.    Equal to
  2.    Larger than
  3.    Smaller than
  4.    Is in the opposite direction of
 Discuss Question
Answer: Option B. -> Larger than
Question 424. Condensation nuclei may be:
  1.    Particles of dust
  2.    Nitric acid particles
  3.    Smoke from forest fires
  4.    Salt from the ocean
  5.    All of these
 Discuss Question
Answer: Option E. -> All of these
Question 425. _______ is an example of "bottom feeders".
  1.    Cat fish
  2.    Frog
  3.    Snake
  4.    Tadpole
 Discuss Question
Answer: Option A. -> Cat fish
Question 426. Moisture in the air is known as
  1.    Water
  2.    Fog
  3.    Snow
  4.    Humidity
 Discuss Question
Answer: Option D. -> Humidity
Question 427. "Smog" is a mixture of
  1.    Smoke and Fog
  2.    Snow and Fog
  3.    Snow and Dust
  4.    Sulphur Dioxide and Fog
 Discuss Question
Answer: Option A. -> Smoke and Fog
Question 428. The major pollutant from automobile exhaust is
  1.    NO
  2.    CO
  3.    SO2
  4.    Soot
 Discuss Question
Answer: Option B. -> CO
Question 429. Nitrogen oxide and hydrocarbons released by automobiles interact to form
  1.    CO
  2.    PAN
  3.    SO2
  4.    Aerosol
 Discuss Question
Answer: Option B. -> PAN
Question 430. Deforestation generally decreases
  1.    Global Warming
  2.    Drought
  3.    Soil erosion
  4.    Rainfall
 Discuss Question
Answer: Option D. -> Rainfall

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