Sewage drained into water bodies kill fishes becauseA. excessive carbon dioxide is added to waterB. it gives off a bad smellC. it removes the food eaten by fishD. it increases competition with fishes for dissolved oxygen

Sewage drained into water bodies kill fishes becauseA. excessive carbo

1.	Sewage drained into water bodies kill fishes becauseA. excessive carbon dioxide is added to waterB. it gives off a bad smellC. it removes the food eaten by fishD. it increases competition with fishes for dissolved oxygen
Answer» Correct Answer - D Sewage provides food for decomposers. Phosphorus and nitrogen compounds present in sewage result into excessive growth of algae on water surface, which is also called algal bloom, this all result in decrease in oxygen, which is dangerous for quatic life.

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Sewage drained into water bodies kill fishes becauseA. excessive carbon dioxide is added to waterB. it gives off a bad smellC. it removes the food eaten by fishD. it increases competition with fishes for dissolved oxygen

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