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Free "Environmental Pollution Quiz" App Download (Android & iOS) with MCQ: Finely divided solid, remaining either with in solution or in suspension is known as; with answers: dissolved solids, settaleable solids, suspended solids, and colloidal solids. Learn Biosphere Quiz Questions, download Google Book (Free Chapter) for undergraduate science students.

Environmental Pollution Quiz – Practice Test 19 PDF Download

MCQ 91: The finely divided solid, remaining either with in solution or in suspension is known as:

  1. Settaleable Solids
  2. Dissolved Solids
  3. Suspended solids
  4. Colloidal Solids

MCQ 92: The naturally HCs found in the atmosphere are produced from the:

  1. Plants
  2. Soil
  3. Lithosphere
  4. Crust

MCQ 93: Which is the chief source of nitrogenous matter urea ?

  1. Phosphorous
  2. Protein
  3. Calcium
  4. Nutrient

MCQ 94: Phosphorous, is needed for the:

  1. Growth
  2. Decomposition
  3. Photosynthesis
  4. Eutrophication

MCQ 95: Primary treatment reduces the bacterial load, ranges from:

  1. 30-80%
  2. 20-75%
  3. 10-60%
  4. 90-100%

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