Question

In a water body the input of pollutants rich in nitrogen and phosphorus causes rapid growth of ______.

Options

• algae

• bacteria

• lichens

• fungi

Answer 1

In a water body the input of pollutants rich in nitrogen and phosphorus causes rapid growth of algae.

Explanation:

Excessive nutrients like nitrogen and phosphorus in water lead to eutrophication, which stimulates the luxuriant growth of algae (often forming harmful algal blooms). This overgrowth depletes oxygen in water once algae die and decompose, causing harm to aquatic life and degrading water quality.