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प्रश्न
Explain briefly the idea contained in the following statement. There will be increasing dependence on sources of energy other than coal and petroleum in the future.
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उत्तर
There will be increasing dependence on sources of energy other than coal and petroleum in the future because these two fossil fuels are non-renewable sources of energy and they are being consumed very quickly by the increasing human population. Further, man is trying to obtain energy from non-polluting sources of energy such as wind, hydroelectric power, etc., to prevent excessive pollution that is caused by the use of coal and petroleum.
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संबंधित प्रश्न
Define the following:
Deforestation
Name any two renewable resources for the mankind.
Coal and iron are inexhaustible resources.
Petroleum is a resource of the same category as that of ______.
What was directly responsible for the rapid rise of world population in the twentieth century?
Which of the following is not a non-conventional source of energy?
Which of the following is an exhaustible source of energy?
Match the terms given in column A with those in column B.
| Column A | Column B | ||
| (a) | Forest | (i) | Arithmetic progression |
| (b) | Food | (ii) | Geometric progression |
| (c) | Population | (iii) | Deforestation |
| (d) | Coal | (iv) | Afforestation |
| (e) | Flash floods | (v) | Renewable source of energy |
| (vi) | Non-renewable source of energy |
Define the following term:
Resources
Distinguish between the following pair:
Deforestation and Afforestation.
