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 |
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 |
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 |
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 |
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 |
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 |