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प्रश्न
What was directly responsible for the rapid rise of world population in the twentieth century?
विकल्प
Better education and jobs
Religious and social customs
Better healthcare
Increased food production
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उत्तर
Better healthcare
Explanation:
Improved healthcare facilities reduce mortality rates and boost population growth.
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संबंधित प्रश्न
Present human population growth is following arithmetic progression.
Name any two Non-renewable resources of energy.
Name any two renewable resources for the mankind.
Coal and iron are inexhaustible resources.
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:
Conventional and Non-conventional sources of energy.
What do you mean by the 3Rs in the context of sustainable development?
