About ecology

1. About ecology

Васильев Андрей
ИГГТиС 1курс
Экология и природопользование
1 группа

2.

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

3.

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:

4. The first reason

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

5. 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.

6.

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.

7.

8.

Water pollution is a serious problem of
mankind, but water can still be saved. First of
all you need to learn to take care of natural
resources