About ecology

One of the main environmental problems is water pollution.This is exactly what will be discussed.

The surface of the earth is 75% water. Thanks to it on our planet there is life
Water is important for living organisms for two reasons:

The first reason
Water is an essential component of living cells. It underlies many of the processes that occur in living organisms.

The second reason
For many organisms it also serves as a habitat. For example, you can take fish. From water, with the help gills, they receive oxygen for enrichment them blood.

But due to human and natural factors water can become uninhabitable. The consequences of water pollution lead to imbalance in the ecosystem, the development of diseases and death of representatives of the biosphere. As a result the fish begins to die.