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Environmental Science MCQs – Practice Test 55 (Chapter 4)

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Download the "Environmental Pollution Quiz" App (Android & iOS): What is the approximate temperature In the Pyrolysis reactor ?; MCQ with answers: 650-1000c, 890-1000c, 550-1000c, and 200-1000c. Study Major Ecosystems Quiz Questions, download Google Book (Free Chapter) for conservation biology students.

Environmental Pollution Quiz – Practice Test 55 PDF Download

MCQ 271: How much BOD reduces in preliminary treatment ?

  1. 15 to 30%
  2. 17 to 60%
  3. 19 to 80%
  4. 10 to 90%

MCQ 272: What is the approximate temperature In the Pyrolysis reactor ?

  1. 890-1000C
  2. 650-1000C
  3. 550-1000C
  4. 200-1000C

MCQ 273: What is produced by the fermentation of agricultural waste?

  1. Ethanol
  2. Ethanol Amine
  3. Aminoacids
  4. Base

MCQ 274: The emission of CO and NO2 are responsible for the higher concentration of O3 in the:

  1. Stratosphere
  2. Troposphere
  3. Thermosphere
  4. Biosphere

MCQ 275: Which particles are larger and heavier?

  1. Dust particles
  2. Settleable particles
  3. Smog particles
  4. Atmospheric particles

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