Safe and Drinking Water Learning App | Class 7 Science MCQ e-Book PDF

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Safe and Drinking Water Multiple Choice Questions with Answers – PDF Download

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Free "Safe and Drinking Water" App Download with MCQ: Oil can be poison for; with answers: insect's life, aquatic life, animal's life, and human life for science virtual academic support. Solve Importance of Water Quiz Questions, download Google e-Book (Free Chapter) to strengthen academic skills online.

Safe and Drinking Water MCQs PDF Download – Prep Test

MCQ 1: Oil can be poison for:

  1. insect's life
  2. aquatic life
  3. animal's life
  4. human life

MCQ 2: When algae grows on the surface of water, it prevents:

  1. access of bacteria in water
  2. access of sunlight in water
  3. growth of fungi
  4. growth of ferns and mosses

MCQ 3: The poison gets more concentrated as it moves through:

  1. water
  2. food chain
  3. fish body
  4. vascular bundles in aquatic plants

MCQ 4: Skin diseases, eye infections and diarrhea are the examples of:

  1. water borne diseases
  2. water washed diseases
  3. water related diseases
  4. anti water diseases

MCQ 5: Fish in the ponds and lakes die because the algae:

  1. takes all the minerals from water
  2. takes all the oxygen from water
  3. prevents sunlight to enter water
  4. prevent from respiring

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