CBSE (Central Board of Secondary Education) Class-7 Science: Questions 283 - 288 of 322

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Question 283

Question MCQ▾

Products of the forest are:

Choices

Choice (4)Response

a.

Timber, Rubber, Resin, Bamboo

b.

Essential Oils

c.

Medicines

d.

All a., b. and c. are correct

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Question 284

Question MCQ▾

We have to conserve the forests:

Choices

Choice (4)Response

a.

Because they are key link to food

b.

Because deforestation reducing the habitat of many animals

c.

Because deforestation changes climate

d.

All a., b. and c. are correct

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Question 285

Question MCQ▾

Deforestation means:

Choices

Choice (4)Response

a.

Cutting of trees to clear area for building houses and for doing farming

b.

Clearing large area of forest lands and related ecosystems for non-forest use

c.

Regenerating the lost forest cover

d.

Both a. and b. are correct

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Question 286

Question MCQ▾

Costly electric appliances are fitted with a:

Choices

Choice (4)Response

a.

Fuse wire in insulating holders

b.

Cartridge fuse

c.

None of the above

d.

Question does not provide sufficient data or is vague

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Question 287

Question MCQ▾

Sandalwood oil is used in preparation of:

Choices

Choice (4)Response

a.

Soaps

b.

Agarbattis

c.

Room Fresheners

d.

All a., b. and c. are correct

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Question 288

Question MCQ▾

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

Choices

Choice (4)Response

a.

Decrease the effectiveness of soil in filtering the water

b.

Because they harden and block the pipes

c.

Because they clog the soil

d.

All a., b. and c. are correct

Edit