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MCQs

Total Questions : 335 | Page 28 of 34 pages
Question 271. Runoff from paved surfaces can cause thermal pollution.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 272. When can we classify waste as hazardous?
  1.    When waste won’t cause any mortality
  2.    When waste increase mortality
  3.    When waste decrease mortality
  4.    When waste decompose itself without any aid
 Discuss Question
Answer: Option B. -> When waste increase mortality
Answer: (b).When waste increase mortality
Question 273. What is a toxic waste?
  1.    Substances those are not poisonous
  2.    Substances those are poisonous only when it taken in large quantity
  3.    Substances those are poisonous only when it taken in small quantity
  4.    Substances which work as an antidote for toxic materials
 Discuss Question
Answer: Option C. -> Substances those are poisonous only when it taken in small quantity
Answer: (c).Substances those are poisonous only when it taken in small quantity
Question 274. Based on how many primary characteristics we can classified waste as hazardous?
  1.    One
  2.    Two
  3.    Three
  4.    Four
 Discuss Question
Answer: Option D. -> Four
Answer: (d).Four
Question 275. Why chronic toxicity is difficult to determine?
  1.    Because there is no cure for that
  2.    Because it causes only little problems
  3.    Because effects can be seen immediately
  4.    Because effects may not be seen for years
 Discuss Question
Answer: Option D. -> Because effects may not be seen for years
Answer: (d).Because effects may not be seen for years
Question 276. Which of the following is a hazardous substance?
  1.    Gold
  2.    Lead
  3.    Copper
  4.    Iron
 Discuss Question
Answer: Option B. -> Lead
Answer: (b).Lead
Question 277. The use of polyvinyl chloride can be lowered by reducing the use of plastic.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 278. How do PCBs impact on birds?
  1.    They decrease the memory
  2.    They cause reproductive failure
  3.    They cause bird flu
  4.    They cause indigestion
 Discuss Question
Answer: Option B. -> They cause reproductive failure
Answer: (b).They cause reproductive failure
Question 279. In order to dispose hazardous waste where there are no abundant lands which method is used?
  1.    Land disposal
  2.    Burning
  3.    Floats in water bodies
  4.    Incineration
 Discuss Question
Answer: Option D. -> Incineration
Answer: (d).Incineration
Question 280. Vinyl chloride is widely used in the manufacture of______________
  1.    Glass
  2.    Agricultural chemicals
  3.    Storage of aquatic foods
  4.    Plastics
 Discuss Question
Answer: Option D. -> Plastics
Answer: (d).Plastics

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