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प्रश्न
How is the life of organisms living in water affected when water gets polluted?
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उत्तर
The addition of undesired chemicals such as pesticides, fertilizers, industrial and domestic wastes not only kills the organisms but also causes diseases in the aquatic organisms. There is a decrease in the amount of dissolved oxygen in water, which has a negative impact on aquatic life.
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संबंधित प्रश्न
Match the statements in column A with that in column B.
| Column A | Column B |
| (a) deliquescent substance | (1) sodium bicarbonate |
| (b) hygroscopic substance | (2) magnesium chloride |
| (c) efflorestance substance | (3) conc. sulphuric acid |
| (d) substance causing temporary hardness | (4) washing soda |
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Aquifer
