Question

Plural nouns to their singular forms
a- the chimneys of the studio had to be cleaned with wire brushes

Answer 1

Answer:

Destroys life in the water based ecosystem which is polluted which in turn disrupts natural food chain. Aquatic life is destroyed due to the non-biodegradable pesticides and chemicals. Water pollution affects the microbial population. There is a steep increase in the BOD levels of water.

Explanation:

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