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The MCQ: The BOD, which is not oxidized biologically is known as; "Water Pollution" App Download [Free] with answers: biologically degradable, biologically inactive, biologically active, and bioactive to study online classes courses. Practice Water Pollution Quiz Questions, download Google e-Book (Free Chapter) for colleges that offer certificate programs.

Water Pollution MCQs PDF Download – Prep Test

MCQ: 1

The BOD, which is not oxidized biologically is known as

  1. Biologically Degradable
  2. Biologically Inactive
  3. Biologically Active
  4. Bioactive
MCQ: 2

Secondary treatment is also known as

  1. Biological Treatment
  2. Preliminary Treatment
  3. Secondary Treatment
  4. Tertiary Treatment
MCQ: 3

What is important to support marine animals in water bodies?

  1. Dissolved Oxygen
  2. Nitrogen
  3. CO
  4. CO2
MCQ: 4

The presence of hydrogen sulphide indicates anaerobic

  1. Decomposition
  2. Eutrophication
  3. Degradation
  4. Biodegradation
MCQ: 5

In higher temperature, the D.O concentration of water molecules is, comparatively

  1. High
  2. Low
  3. Medium
  4. Very High

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