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प्रश्न
Distinguish between the following pair:
Deforestation and Afforestation.
उत्तर
Deforestation: Deforestation (cutting down of forests) has been one of the most serious outcomes of the rising population to get land for cultivation and housing and to obtain timber and wood.
Afforestation: Forests are one of our renewable resources. By careful management and afforestation (planting more trees), we can maintain and even improve the existing forests.
संबंधित प्रश्न
Present human population growth is following arithmetic progression.
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.
Name any two Non-renewable resources of energy.
Name any two resources which come under pressure due to the rising population.
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 |
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:
Conventional and Non-conventional sources of energy.
