Chapter 13: Importance of Water - Science Mcqs for Grade 7

1.

Fluoride is also added to water, which helps in preventing

A. infection

B. sickness

C. fever

D. tooth decay

Answer & Solution Discuss in Board

2.

The tanks that supply water to towns are built at

A. roofs of buildings

B. high towers

C. town level

D. high lands

Answer & Solution Discuss in Board

3.

Polar ice caps are found near the

A. East and West poles

B. East and North poles

C. North and South poles

D. West and South poles

Answer & Solution Discuss in Board

4.

Oil can be poison for

A. insect's life

B. aquatic life

C. animal's life

D. human life

Answer & Solution Discuss in Board

5.

The largest ocean on earth is

A. Pacific Ocean

B. Atlantic Ocean

C. Antarctic Ocean

D. Arctic Ocean

Answer & Solution Discuss in Board

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

Answer & Solution Discuss in Board

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

Answer & Solution Discuss in Board

8.

The percentage of salty water is

A. 0.8

B. 0.9

C. 0.95

D. 0.97

Answer & Solution Discuss in Board

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

Answer & Solution Discuss in Board

10.

The poison gets more concentrated as it moves through

A. water

B. food chain

C. fish body

D. vascular bundles in aquatic plants

Answer & Solution Discuss in Board

Practice MCQ Questions and answers on Chapter 13: Importance of Water - Science Mcqs for Grade 7

1. Fluoride is also added to water, which helps in preventing

Answer & Solution

2. The tanks that supply water to towns are built at

Answer & Solution

3. Polar ice caps are found near the

Answer & Solution

4. Oil can be poison for

Answer & Solution

5. The largest ocean on earth is

Answer & Solution

6. Desalination plant is very expensive because it

Answer & Solution

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

Answer & Solution

8. The percentage of salty water is

Answer & Solution

9. As compare to hose for car washing, bucketing uses

Answer & Solution

10. The poison gets more concentrated as it moves through

Answer & Solution

Read More Section(Science Mcqs)

1.

Fluoride is also added to water, which helps in preventing

2.

The tanks that supply water to towns are built at

3.

Polar ice caps are found near the

4.

Oil can be poison for

5.

The largest ocean on earth is

6.

Desalination plant is very expensive because it

7.

When algae grows on the surface of water, it prevents

8.

The percentage of salty water is

9.

As compare to hose for car washing, bucketing uses

10.

The poison gets more concentrated as it moves through