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(i) We do not clean ponds or lakes, but ...

(i) We do not clean ponds or lakes, but an aquarium needs to be cleaned. Why ?
(ii) What are the harmful byproducts of fertilizers industries ? How do they affect the environment ?
(iii) Why are crop fields known as artificial ecosystem ?

Text Solution

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AAA(i) Refer to Topic- 1, SATQ- I, Q.1.
(ii) The harmful byproducts are gases such as `SO_(2)` and `NO_(2)`. They cause extensive air pollution and are responsible for acid rain.
(iii) Crop fields are man-made and some biotic and abiotic components are manipulated by humans.
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