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Air Pollution

Total questions: 20

Worksheet time: 3600secs

Name
Class
Date
1.

Which is true of air pollution and human health?

a)

Years of research link air pollution to lung diseases, birth defects, and cancer

b)

Air pollution is commonly listed as a cause of death.

c)

None of the health effects of air pollution are reversible.

d)

Healthy adults are most affected by air pollution.

2.
Which of these problems can be caused by air pollution?
a)
Respiratory problems
b)
Reduced food sources for humans
c)
Increased disease for humans
d)
Decrease in global temperatures
3.
The ozone layer is damaged by
a)
CFCs
b)
Increase in greenhouse gases
c)
Increased global temperatures
d)
Sulfuric and nitric acids
4.
Greenhouse gases, in moderate amounts, keep the Earth's temperature stable
a)
True
b)
False
5.

Air pollution causes all of the following, except

a)

holes in the ozone layer

b)

increased particles in the air

c)

acid rain

d)

healthy air to breath

e)

smog

6.

What is the main cause of air pollution?

a)

plowing fields and releasing dust

b)

using solar power

c)

burning fossil fuels

d)

using water power

7.

What are ways that we can decrease air pollution?

a)

carpool

b)

conserving electricity

c)

follow laws made by the EPA

d)

burning extra fossil fuels

8.
Air is mostly made up of what two gases?
a)
oxygen and nitrogen
b)
oxygen and hydrogen
c)
hydrogen and helium
d)
nitrogen and hydrogen
9.
How much oxygen is in the air? (%)
a)
25%
b)
21%
c)
68%
d)
50%
10.
How much nitrogen is in the air? (%)
a)
75%
b)
71%
c)
68%
d)
60%
11.
Does fire need oxygen?
a)
Yes, it does
b)
No, it doesn`t
12.
The main gas for breathe is
a)
nitrogen
b)
oxygen
c)
argon
d)
hydrogen
13.
The main gas for breathe is
a)
nitrogen
b)
oxygen
c)
argon
d)
hydrogen
14.
Which type of fire extinguisher should be used on a fire involving flammable liquids such as grease or oil?
a)
Water
b)
Carbon Dioxide 
c)
Dry Chemical
d)
Foam
15.
Which is not combustible substance
a)
Wood
b)
Cow dung cake
c)
stone
d)
paper
16.
What is produced when combustable substance is in the vapour state and burn strongly in the presence of of air?
a)
heat 
b)
light
c)
flame
d)
fumes
17.
The condition which are required for combustion to take place are:
a)
fuel
b)
ignition temperature
c)
oxygen
d)
all of these
18.
Another term for burning is
a)
Fire triangle
b)
Magnesium oxide
c)
Combustion
d)
Bustion
19.
Combustion is when a __________ reacts with oxygen
a)
petrol
b)
fuel
c)
fire triangle
d)
carbon dioxide
20.

Combustion is a

a)

Natural process

b)

Chemical process

c)

Physical process

d)

None of these processes