Pollution of rivers, lakes and seas is a major concern for people who seek to protect the environment. What are the possible causes of water pollution, and what effects does this have on animal life and human society?

Undoubtedly, an essential element of the ecosystem is

.

occurs when harmful chemicals or microorganisms are released into

bodies, resulting in the degradation of

‘ and humans’ life quality.

On the one hand, the most common cause of

is the direct disposal of industrial and human

into the surface

. Another reason worth mentioning is the

spill. Since the dawn of industrialization, numerous factories have been discharging toxic chemical compounds

as metallic sulfides or cyanides. When being introduced into lakes, rivers, and seas, these toxic wastes poison freshwater or saltwater

and plants,

destroying the ecosystem. Even when the industrial

is buried in the ground, it can still permeate the soil to pollute the underground

,

beginning the process again.

, another cause of

is human

. Various kinds of pathogenic bacteria live in human

, and they may cause gastrointestinal infections if they appear in the

supply.

spills are

the reason for sea

. Most marine

cannot digest

, or cleanse the spilling

on their feathers.

, they will die soon unless there are human interventions. The spill

adversely affects seawater, which damages the tourist industry of coastal regions.

In conclusion,

is mostly the result of

spills and industrial or human

disposal. It severely affects the environment and

the life of

and humans.