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Question
What was directly responsible for the rapid rise of world population in the twentieth century?
Options
Better education and jobs
Religious and social customs
Better healthcare
Increased food production
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Solution
Better healthcare
Explanation:
Improved healthcare facilities reduce mortality rates and boost population growth.
RELATED QUESTIONS
Define the following:
Deforestation
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.
Coal and iron are inexhaustible resources.
List any three consequences of high population density.
Which of the following is not a non-conventional 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 : ______.
Define the following term:
Resources
Distinguish between the following pair:
Exhaustible and Inexhaustible resources.
Distinguish between the following pair:
Deforestation and Afforestation.
