Question

How does algal bloom destroy the quality of a fresh water body ? Explain.

Answer 1

BY produce red tides or poision strings

Answer 2

By decreasing the level of nutrients and oxygen in aquatic body

Explanation:

• Eutrophication refers to a natural event taking place in the aquatic body in which the nutrient content like phosphorus and nitrogen of the aquatic body increases. As a result of this the organisms like green plants and algae which can use those nutrients grows and covers the whole aquatic body.  

This event can lead to the depletion of the organisms which lives at the bottom:

1. No light is able to penetrate the algal bloom

2. The dissolved oxygen is depleted so therefore not available

3. The algae use the nutrient, therefore, the nutrient level decreases

To learn more:

1. Eutrophication: https://brainly.in/question/8915613