Wastewater Story (CBSE Class-7 Science): Questions 22 - 23 of 23

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Question number: 22

» Wastewater Story » Better House Keeping Practices » Various Ways to Prevent Water Pollution

MCQ▾

Question

Some ways to prevent water pollution are:

Choices

Choice (4) Response
a.

Use reusable canvas bags

b.

Put litter in the trash

c.

Dispose of unwanted paints, house-hold cleaners and gardening product safety

d. All a. , b. and c. are correct

Question number: 23

» Wastewater Story » Sewage » What Is Sewage

MCQ▾

Question

All types of liquid wastes, which have harmful dissolved substances in it, are called as:

Choices

Choice (4) Response
a.

Sewage

b.

Sewer

c.

Dump

d. All of the above

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