Экологиялық мәселелер туралы презентация, шет тілі

Ecological

Problems

Pollution and protection of

our environment

• Ecology is a science. Many sciences have such prefix. • What does it mean “Eco”?

• “Eco” means “home" in Latin language. It’s a science about our mutual home – about nature. • Science, which teachers us to treat very carefully to our homeland. • Environment – is surroundings we live in.

People have always

polluted their surroundings. Even in ancient times people admitted that their health was depending on the state of surroundings. But only in XX century humanity, in full measure, realized , that many diseases are closely connected with the air and water pollution and inferior products.

Ecological problems

Air pollution.

• Air pollution is a very serious problem, because polluted air can cause illness and even death. Every year world industry pollutes the atmosphere with about 1500 million tons of dust and other harmful substances. Many cities suffer from smog, the oxygen balance upsets. Cars are polluting the air by exhaust gases and other dangerous chemicals.