Wastewater Story-Better House Keeping Practices (CBSE (Central Board of Secondary Education- Board Exam) Class-7 Science): Questions 1 - 4 of 4

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Question number: 1

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

MCQ▾

Question

Why cooking oil and fats should not be thrown down the drain?

Choices

Choice (4) Response

a.

Because they clog the soil

b.

Because they harden and block the pipes

c.

Decrease the effectiveness of soil in filtering the water

d.

All a. , b. and c. are correct

Question number: 2

» Wastewater Story » Better House Keeping Practices » Conservation of Water

MCQ▾

Question

Some methods to conserve the water are:

Choices

Choice (4) Response

a.

Mop the floors instead of washing them

b.

Adopt rain harvesting technique

c.

Avoid wastage of water

d.

All a. , b. and c. are correct

Question number: 3

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

MCQ▾

Question

Wastes which choke the drain are:

Choices

Choice (4) Response

a.

Cotton, Sanitary Napkins

b.

Used tea leaves, solid food remains

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 4

» 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

AND

Reduce, reuse and recycle

b.

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

c.

Put litter in the trash

d.

All a. , b. and c. are correct

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