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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.
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
Present human population growth is following arithmetic progression.
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 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 |
Given below is a set of paired terms. The first pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Cutting down of forests : Deforestation :: Planting more trees : ______.
Distinguish between the following pair:
Exhaustible and Inexhaustible resources.
Distinguish between the following pair:
Deforestation and Afforestation.
What do you mean by the 3Rs in the context of sustainable development?
