----- Nội dung dịch tự động từ ảnh -----
of
live
are
buildings
exhausts
increase
Air pollution is caused of ill health in human beings. In a lot of countries, there (1)...
laws limiting the amount of smoke which factories can produce. Doctors have proved that air
pollution causes lung diseases.
The gases from the (2)
of cars have also increased air pollution in
most cities. The lead in petrol produces a poisonous gas, which is often collected in busy
streets circled by high (3) ...
Children who (4).
in
areas where there is a lot of lead in the atmosphere can not think as quickly as other children,
and are clumsy when they use their hands.
There are other long-term effects (5).
atmosphere continue to (6) ....
pollution. If the gases in the
the earth's climate may become warmer.
A lot of the air near the Poles may melt and may cause serious floods.