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Earth's Atmosphere

Total questions: 20

Worksheet time: 14mins

Name
Class
Date
1.
Earth's current atmosphere is _?_.
a)
78% nitrogen, 21% oxygen, 0.9% argon and 0.037% carbon dioxide
b)
78% oxygen, 21%nitrogen, 0.9% argon, 0.037% carbon dioxide
c)
78% nitrogen, 21% argon, 1% oxygen
d)
78% oxygen, 21% nitrogen, 1% carbon dioxide
2.
Earth's current atmosphere is _?_.
a)
78% nitrogen, 21% oxygen, 0.9% argon and 0.037% carbon dioxide
b)
78% oxygen, 21%nitrogen, 0.9% argon, 0.037% carbon dioxide
c)
78% nitrogen, 21% argon, 1% oxygen
d)
78% oxygen, 21% nitrogen, 1% carbon dioxide
3.
What makes up 99% of the atmosphere?
a)
nitrogen
b)
oxygen
c)
carbon dioxide
d)
nitrogen and oxygen together
4.
What does ozone in the atmosphere do?
a)
It absorbs and traps heat energy.
b)
It provides a place for water vapor to condense.
c)
It protects against harmful UV radiation.
d)
It helps plants grow.
5.
As you increase in altitude, pressure _?_.
a)
increases
b)
decreases
c)
remains the same
6.
What is the most common gas in the atmosphere?
a)
nitrogen
b)
oxygen
c)
water vapor
d)
carbon dioxide
7.
Oxygen makes up approximately ____% of the gases in the atmosphere.
a)
20
b)
40
c)
60
d)
80
8.

The mixture of gases that surrounds Earth is the ______________.

a)

atmosphere

b)

air pressure

c)

troposphere

d)

stratosphere

9.

__________ is the measure of the force with which particles in the air push on an area of a surface.

a)

atmosphere

b)

air pressure

c)

troposphere

d)

stratosphere

10.

The _________ protects Earth by absorbing large amounts of harmful ultraviolet radiation from the sun.

a)

ozone layer

b)

mesosphere

c)

thermosphere

d)

greenhouse effect

11.

The _________ is the process by which gases in the atmosphere, such as water vapor and carbon dioxide, absorb and give off infrared radiation.

a)

ozone layer

b)

mesosphere

c)

thermosphere

d)

greenhouse effect

12.

The most abundant gas in Earth's atmosphere is what?

a)

Oxygen

b)

Nitrogen

c)

Troposphere

d)

Helium

13.

The _____ protects us from Earth's harmful UV rays.

a)

Ozone

b)

Troposphere

c)

Clouds

d)

Exosphere

14.
Nitrogen makes up what percent of our atmosphere?
a)
21%
b)
1%
c)
87%
d)
78%
15.
Which of the following is one of the trace gases found in Earth’s atmosphere? 
a)
gold
b)
nitrogen
c)
oxygen
d)
carbon dioxide
16.
Why is Earth's atmosphere important?
a)
It is beautiful.
b)
It prevents pollution from happening.
c)
Life on Mars could not exist without it.
d)
Life on Earth could not exist without it.
17.

Identify the most common gases found in Earth's atmosphere.

a)

carbon dioxide

b)

argon

c)

oxygen

d)

nitrogen

18.

Explain how does the ozone layer helps life on Earth?

a)

Produces oxygen for atmosphere.

b)

Protects Earth from meteors.

c)

Absorbs damaging radiation from the sun.

d)

Reflects most of the sun's radiation to keep Earth cool.

19.

The layer of gases that surrounds the Earth is called the:

a)

atmosphere

b)

biosphere

c)

hydrosphere

d)

lithosphere

20.

The source of energy that drives air movement in the atmosphere is the:

a)

Sun

b)

Oceans

c)

Moon

d)

Ionosphere

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