Explain the cause of algal bloom in a water body. How does it affect a

1.	Explain the cause of algal bloom in a water body. How does it affect an ecosystem?
Answer» Domestic sewage and industrial effluents contain nutrients like nitrogen and phosphorus which favour the excessive growth of planktonic (free-floating) algae called algal bloom. Its harmful effects cause: (i) sharp decline in dissolved oxygen content in the water. (ii) deterioration of water quality and causes mortality of aquatic life forms.

Explain the cause of algal bloom in a water body. How does it affect an ecosystem?

Answer»

Domestic sewage and industrial effluents contain nutrients like nitrogen and phosphorus which favour the excessive growth of planktonic (free-floating) algae called algal bloom.

Its harmful effects cause:

(i) sharp decline in dissolved oxygen content in the water.

(ii) deterioration of water quality and causes mortality of aquatic life forms.

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Explain the cause of algal bloom in a water body. How does it affect an ecosystem?

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