Class 7 Courses

Chapter 13: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 13

Importance of Water Multiple Choice Questions (MCQ) PDF Download - 2

The Importance of water Multiple Choice Questions (MCQ Quiz) with Answers PDF (Importance of Water MCQ PDF e-Book) download Ch. 13-2 to learn Grade 7 Science Course. Study Distillation Multiple Choice Questions and Answers (MCQs) PDF, Importance of Water Quiz Questions and Answers to study online homeschool courses. The Importance of Water MCQ App Download: Free educational app for distillation, safe and drinking water, fresh water, saving water test prep for online degree programs.

The MCQs: Desalination plant is very expensive because it; "Importance of Water" App (Android, iOS) with answers: Is built on mountains and high lands; Uses a large amount of fuel; Uses electric machinery for desalination; Is built with expensive material; to study online homeschool courses. Practice Distillation MCQ Questions, download Apple e-Book (Free Sample) for online classes.

Importance of Water MCQs with Answers PDF Download: Quiz 2

MCQ 6:

Desalination plant is very expensive because it

  1. uses a large amount of fuel
  2. is built on mountains and high lands
  3. uses electric machinery for desalination
  4. is built with expensive material
MCQ 7:

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 8:

The percentage of salty water is

  1. 0.8
  2. 0.9
  3. 0.95
  4. 0.97
MCQ 9:

As compare to hose for car washing, bucketing uses

  1. less water
  2. more water
  3. equal water
  4. maybe less water or more
MCQ 10:

The poison gets more concentrated as it moves through

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

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Importance of Water App (Android & iOS)

Importance of Water App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (iOS & Android)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (iOS & Android)