Question

what is smog and eutrophication? ​

Answer 1

Answer:

Smog is air pollution that reduces visibility. The term "smog" was first used in the early 1900s to describe a mix of smoke and fog. The smoke usually came from burning coal. Smog was common in industrial areas, and remains a familiar sight in cities today. Today, most of the smog we see is photochemical smog.

Eutrophicationis the process by which a body of water becomes overly enriched with minerals and nutrients which induce excessive growth of algae.This process may result in oxygen depletion of the water body after the bacterial degradation of the algae.

Explanation:

Answer 2

Explanation:

Eutrophication, the gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem such as a lake. The productivity or fertility of such an ecosystem naturally increases as the amount of organic material that can be broken down into nutrients increases.