CBSE (Central Board of Secondary Education) Class-8 Science: Questions 127 - 132 of 465
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Question 127
Question MCQ▾
Black oily material resulting from the destructive distillation of coal is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Crude oil | |
b. | Petroleum | |
c. | Coal-tar | |
d. | Coal-gas |
Question 128
Question MCQ▾
Fire extinguishers used at airports and petrol pumps based on the principle of:
Choices
Choice (4) | Response | |
---|---|---|
a. | Smothering the fire | |
b. | Cooling the fire | |
c. | All of the above | |
d. | Question does not provide sufficient data or is vague |
Question 129
Question MCQ▾
Inexhaustible natural resources are:
Choices
Choice (4) | Response | |
---|---|---|
a. | A natural resource is anything in or above the earth that people use | |
b. | Resources which are present in unlimited quantity | |
c. | It is a fossil fuel | |
d. | Resources which are present in limited quantity |
Question 130
Question MCQ▾
Paraffin wax is used for:
Choices
Choice (4) | Response | |
---|---|---|
a. | Making candles, boot polish | |
b. | As a grease | |
c. | For air proofing in laboratories | |
d. | All a., b. and c. are correct |
Question 131
Question MCQ▾
Inexhaustible resources are also called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Fossil fuels | |
b. | Renewable resources | |
c. | Non-living resources | |
d. | Non-renewable resources |
Question 132
Question MCQ▾
The substances with low ignition temperature are called as:
Choices
Choice (4) | Response | |
---|---|---|
a. | Inflammable substance | |
b. | Fuel | |
c. | Flammable substance | |
d. | None of the above |