Unit 5, Water – General Science online quiz class 7

Unit 5, Water - General Science MCQs class 7

Class 7 General Science, Chaper # 5, online quiz

Online test preparation for ETEA, NTS, KPPSC, PPSC, FPSC or any type of competitive Exams as well as for kpk teaching posts

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Unit 5, Water - General Science MCQs class 7

Class 7 General Science, Chapter # 5, MCQs with answers 

Online test preparation for ETEA, NTS, KPPSC, PPSC, FPSC or any type of competitive Exams as well as for kpk teaching posts

1 / 18

Water is the second most essential requirement for the survival of life, after ____

2 / 18

About ____ of the Earth’s surface is covered by water 

3 / 18

Water comprises approximately ____ percent of the weight of an adult human body.

4 / 18

Freshwater is defined as water with a salinity of less than 1% that of the oceans. i.e below around ____

5 / 18

Distillation is a technique of:

6 / 18

_______ added in order to protect water from germs.

7 / 18

_____ contains more than 97 percent of the total water.

8 / 18

Substances that cause water pollution are called  _____.

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Freshwater needed for human requirements is nearly ____ of the total.

10 / 18

Pesticides and fertilizers are the source of:

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Percentage of water on earth's surface is about:

12 / 18

 ______ structure is damaged due to acid rain.

13 / 18

Settling process is called:

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______ consists of two basic processes: boiling and condensation.

15 / 18

Suspended particles from drinking water are removed by:

16 / 18

Harmful bacteria are removed from water by passing:

17 / 18

Suspended particles stick together forming larger particles called:

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_____ occurs when undesirable foreign substances are introduced into natural water.

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