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Study Safe and drinking water Multiple Choice Questions (MCQ Quiz) with Answers PDF to strengthen academic skills online. Download the Safe and Drinking Water MCQ PDF e-Book to study Class 7 Science Tests. Learn Importance of Water Multiple Choice Questions and Answers (MCQs), Safe and Drinking Water quiz answers PDF for science virtual academic support. Download the Safe and Drinking Water Learning App: Free Class 7 Science MCQ App to study safe and drinking water, fresh water, water treatment test prep for science performance tracking tools.

Free "Safe and Drinking Water Learning" App Download with MCQ: Oil can be poison for; with answers: insect's life, aquatic life, animal's life, and human life. 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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