Atmosphere
Practice Test
1.
Where can CFCs be found?
a.
aerosol sprays
b.
air conditioners
c.
refrigerators
d.
all answers are correct
Hint
2.
Which layer of the atmosphere is named after its high temperature?
a.
stratosphere
b.
troposphere
c.
mesosphere
d.
thermosphere
Hint
3.
Force exerted on an area is called __________.
a.
mass
b.
pressure
c.
temperature
d.
gravity
Hint
4.
What causes a shooting star?
a.
a comet in the thermosphere
b.
a comet in the stratosphere
c.
a meteor in the troposphere
d.
a meteor in the mesosphere
Hint
5.
Why are the thermosphere and exosphere the warmest of the atmospheric layers?
a.
because they are closest to the Sun
b.
because the air pressure is too great
c.
because of the gases trapped in these layers
d.
because the underlying mesosphere keeps the warm air there
Hint
6.
What have CFCs done to Earth and its atmosphere?
a.
They have created a hole in the ozone layer.
b.
all answers are correct
c.
They have caused more ultraviolet radiation to reach Earth.
d.
They have caused the number of cancer cases to rise.
Hint
7.
Which layer of the atmosphere contains the ozone layer?
a.
troposphere
b.
stratosphere
c.
exosphere
d.
thermosphere
Hint
8.
What is the most abundant gas in Earth's atmosphere?
a.
nitrogen
b.
hydrogen
c.
carbon
d.
oxygen
Hint
9.
The hydrosphere, which consists of all of Earth's water, is maintained __________.
a.
by the clouds in the atmosphere
b.
by addition of water to the atmosphere
c.
by removing water from the atmosphere
d.
by recycling water in the atmosphere
Hint
10.
How do CFCs destroy ozone?
a.
A chlorine atom from a CFC combines with one oxygen from ozone and leaves a two- atom oxygen molecule.
b.
A carbon atom from a CFC combines with one oxygen from ozone and leaves a two-atom oxygen molecule.
c.
A CFC combines with a three-atom oxygen molecule.
d.
A chlorine atom from a CFC combines with two oxygen atoms from ozone and leaves an oxygen atom.
Hint
11.
How is the troposphere warmed?
a.
The Sun warms Earth's surface, which warms the air above it.
b.
The stratosphere warms it.
c.
The gases in the troposphere absorb heat from the Sun.
d.
The troposphere absorbs sunlight directly.
Hint
12.
Why are there fewer molecules of air up in the mountains?
a.
because air pressure increases as you go higher
b.
because air pressure is the same throughout all layers of the atmosphere
c.
because air pressure decreases as you go higher
d.
because air is too heavy
Hint
13.
What is it called when water changes from gas to liquid?
a.
condensation
b.
melting
c.
evaporation
d.
freezing
Hint
14.
What's the difference between ozone and the oxygen you breath?
a.
One is in gas form and the other is in liquid form.
b.
They're made of totally different atoms.
c.
Ozone is made of three atoms of oxygen, and the oxygen you breathe is made of two.
d.
Ozone is made of two atoms of oxygen and the oxygen you breath is made of three.
Hint
15.
What form of energy transfer heats Earth?
a.
recycling
b.
radiation
c.
conduction
d.
convention
Hint
16.
Within which layer of the atmosphere do you find rain, snow, and clouds?
a.
troposphere
b.
thermosphere
c.
mesosphere
d.
stratosphere
Hint
17.
What is the outermost layer of the atmosphere called?
a.
exosphere
b.
stratosphere
c.
mesosphere
d.
thermosphere
Hint
18.
Heat flows from __________.
a.
medium to high temperature
b.
high to low temperature
c.
same temperature to same temperature
d.
low to high temperature
Hint
19.
What preceded the growth and survival of green plants on Earth?
a.
the formation of an ozone layer
b.
human life
c.
the formation of the solar system
d.
the formation of severe weather
Hint
20.
Conduction is the transfer of heat through __________.
a.
empty space
b.
touch
c.
radiation
d.
thoughts
Hint
