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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
Present human population growth is following arithmetic progression.
Name any two renewable resources for the mankind.
Name any two resources which come under pressure due to the rising population.
Petroleum is a resource of the same category as that of ______.
List any three consequences of high population density.
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 |
Distinguish between the following pair:
Exhaustible and Inexhaustible resources.
