Water pollution and consequences презентация

Слайд 2


Water pollution occurs mainly when people overload the aquatic environment, streams, lakes,

underground waters, bays and seas, waste or substances harmful to living beings.

Слайд 3


Plants and animals need relatively pure water, and they will not survive

if there are toxic chemicals or harmful microorganisms in the water. Water pollution kills a large number of fish, birds and other animals.

Слайд 4


People who drink polluted water can get sick (cancer, infectious diseases, health

problems in future children).

Слайд 5

*Have you asked yourself the question, do the wastes fall into the ocean?


It turns out 75 g dry weight in solid form per person per day fall into the ocean, and in the world live more than 6 billion people.
Имя файла: Water-pollution-and-consequences.pptx
Количество просмотров: 94
Количество скачиваний: 0