Class 7 Online Courses

Chapter 14: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 14

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

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The MCQs: Desalination plant is very expensive because it; "Importance of Water" App Download Android & iOS (Free) with answers is built on mountains and high lands, uses a large amount of fuel, uses electric machinery for desalination and is built with expensive material to study online homeschool courses. Practice distillation quiz questions, download Apple Book (Free Sample) for online classes.

Importance of Water Questions & Answers PDF Download: MCQ Quiz 2

MCQ 6: Desalination plant is very expensive because it

A) uses a large amount of fuel
B) is built on mountains and high lands
C) uses electric machinery for desalination
D) is built with expensive material

MCQ 7: When algae grows on the surface of water, it prevents

A) access of bacteria in water
B) access of sunlight in water
C) growth of fungi
D) growth of ferns and mosses

MCQ 8: The percentage of salty water is

A) 0.8
B) 0.9
C) 0.95
D) 0.97

MCQ 9: As compare to hose for car washing, bucketing uses

A) less water
B) more water
C) equal water
D) maybe less water or more

MCQ 10: The poison gets more concentrated as it moves through

A) water
B) food chain
C) fish body
D) vascular bundles in aquatic plants

Importance of Water Learning App & Free Study Apps

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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 (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)