Презентация на тему по английскому языку на тему Air pollution

are introduced into the atmosphere in a way that

WHAT IS AIR POLLUTION?

human and natural actions. Pollution from nature is not

industrial sources. These sources are usually concentrated in big

Outdoor air pollution:

dust, paint, insect sprays, cigarette smoke or from cooking.
Indoor

can cause problems such as asthma.
To reduce air

 
5. Cleaning
 
6. Pollutant
a) capable of causing harm; injurious
f) Contamination of air by smoke and 
harmful gases
e) consisting of people
d)any thing or place from which 
something comes, arises; origin
c) an act or instance of making clean
b)

f

e

a

d

c

b