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Atmos & Energy chap 15

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
The atmosphere is
a.
the layer in which weather occurs.
b.
the layer that contains the ozone layer.
c.
the layer of water in the oceans.
d.
the layer of gases that surrounds Earth.
 

 2. 
The two most abundant gases in the atmosphere are
a.
carbon dioxide and oxygen.
b.
carbon dioxide and nitrogen.
c.
nitrogen and oxygen.
d.
nitrogen and hydrogen.
 

 3. 
Air in the atmosphere has pressure because
a.
the stratosphere is thick.
b.
air has mass.
c.
wind moves the air.
d.
temperature warms the air.
 

 4. 
The layer in our atmosphere in which weather occurs is the
a.
troposphere.
b.
stratosphere.
c.
mesosphere.
d.
exosphere.
 

 5. 
About ____ percent of the solar energy that reaches the outer atmosphere is absorbed at the Earth's surface.
a.
20
c.
50
b.
30
d.
70
 

 6. 
How does most thermal energy in the atmosphere move?
a.
conduction
c.
advection
b.
convection
d.
radiation
 

 7. 
Which atmospheric layer is the densest?
a.
stratosphere
c.
mesosphere
b.
troposphere
d.
thermosphere
 

 8. 
Near the Earth's surface, air is heated by
a.
conduction.
c.
ozone.
b.
solar winds.
d.
convection.
 

 9. 
The Earth receives energy from the sun in the form of
a.
ozone.
c.
nitrogen.
b.
radiation.
d.
carbon dioxide.
 

 10. 
When radiation reaches the Earth's atmosphere, about 25 percent of it is
a.
reflected by the Earth's surface.
b.
absorbed by the Earth's surface.
c.
scattered and reflected by clouds and air.
d.
absorbed by ozone, clouds, and air.
 



 
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