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AIR: Composition of air

Total questions: 25

Worksheet time: 1hrs 11mins

Name
Class
Date
1.

What is the percentage composition of nitrogen in air?

a)

78%

b)

75%

c)

86%

2.

The composition of air consists of __________ key components.

a)

seven

b)

three

c)

ten

3.

________________ balances out oxygen in the atmosphere.

a)

Carbon dioxide

b)

Nitrogen

c)

Argon

4.

___________________ is used to make fire extinguishers.

a)

Nitrogen

b)

Silicon

c)

Oxygen

5.

The presence of Argon in the air was first suspected by _______________.

a)

John Boyle

b)

Archimedes

c)

Henry Cavendish

6.

_______________ is an asphyxiant .

a)

Oxygen

b)

Argon

c)

Nitrogen

7.

____________ can lead to dizziness and nausea in a person.

a)

Argon

b)

Sodium

c)

Nitrogen

8.

Plants use ________________ for photosynthesis.

a)

Chlorine

b)

Nitrogen

c)

Carbon dioxide

9.

Humidity level raises the _______________ you get to the sea.

a)

closer

b)

farther

10.

_______________ is one of the most abundantly found gases on earth.

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

11.

______________ is a combustible gas.

a)

Nitrogen

b)

Oxygen

c)

Argon

12.

__________________ is the most important gas in the composition of air.

a)

Nitrogen

b)

Argon

c)

Oxygen

13.
The composition of the air can consist of a mixture of gases and particulate matter. What are some examples of particulate matter found within the atmosphere?
a)
Dust
b)
Pollen
c)
Both dust and pollen
14.
Which of the following gases is not part of the earth's atmosphere?
a)
Nitrogen
b)
Oxygen
c)
Argon
d)
Copper Sulfate
15.
Which of the following gases is not a trace gas?
a)
Nitrogen
b)
Carbon Dioxide
c)
Methane
d)
Water Vapor
16.
Which of the following gases has the highest atmospheric composition within the Earth's Atmosphere?
a)
Oxygen at 78%
b)
Nitrogen at 78%
c)
Carbon Dioxide 78%
d)
Methane 78%
17.
Clouds form when water vapor ________________ out of the air.
a)
condenses
b)
evaporates
c)
precipitates
d)
percolates
18.
When gasoline is burned, it releases the gas __________________. 
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
helium
19.
What do dust, smoke, salt, and chemicals have in common?
a)
They are gases in the air.
b)
They make up water vapor in the air.
c)
They are particles in the air.
d)
They are only found in pure air.
20.
Which of these do plants need in order to make food?
a)
argon
b)
carbon dioxide
c)
nitrogen
d)
oxygen
21.
Which gas do plants and animals both take in directly from the air to release energy from their food?
a)
nitrogen
b)
oxygen
c)
carbon dioxide
d)
argon
22.

Which show gases in atmosphere from MOST abundant to least?

a)

Oxygen, Nitrogen, water vapor, CO2,

b)

nitrogen, oxygen, water vapor, CO2

c)

CO2, Oxygen, Nitrogen, water vapor

d)

water vapor, CO2,, Oxygen, Nitrogen

23.

How much of other gases are in the atmosphere?

a)

100%

b)

78%

c)

21%

d)

1%

24.

Check ALL roles of Earth's atmosphere.

a)

keeps us warm

b)

air to breathe

c)

keeps us cold

d)

protects us from meteors

e)

protects us from UV rays

25.
In a pie graph showing gases in our air, what gas makes up 3/4 of the graph?
a)
Nitrogen
b)
Oxygen
c)
Other gases

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