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Atmospherics

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

 1. 

Compared to the poles, the air at the equator is warmer and
a.
less dense, creating an area of high pressure as it rises.
b.
less dense, creating an area of low pressure as it rises.
c.
more dense, creating an area of low pressure as it rises.
d.
more dense, creating an area of high pressure as it rises.
 

 2. 

Earth's atmosphere contains about four times as much nitrogen as
a.
carbon dioxide.
b.
oxygen.
c.
hydrogen.
d.
helium.
 

 3. 

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

 4. 

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.
 

 5. 

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.
 

 6. 

Water vapor is water in the form of
a.
steam.
b.
crystals.
c.
a gas.
d.
droplets.
 

 7. 

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.
 

 8. 

Instruments used to measure air pressure are called
a.
thermometers.
b.
hygrometers.
c.
hydrometers.
d.
barometers.
 

 9. 

What is the most abundant gas in the air that we breathe?
a.
oxygen
c.
hydrogen
b.
nitrogen
d.
carbon dioxide
 

 10. 

The bottom layer of the atmosphere, where almost all weather occurs is the
a.
stratosphere.
c.
thermosphere.
b.
troposphere.
d.
mesosphere.
 

 11. 

Most of the United States is located in which prevailing wind belt; it brings us our weather?
a.
westerlies
c.
southeast trade winds
b.
northeast trade winds
d.
doldrums
 

 12. 

Wind occurs because air tends to move from regions of higher to lower
a.
latitude.
c.
nitrogen levels.
b.
pressure.
d.
humidity.
 

 13. 

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

 14. 

Wind is created by differences in
a.
air temperature.
c.
air pressure.
b.
humidity.
d.
altitude.
 

 15. 

Narrow belts of high-speed winds that blow in the upper troposphere and lower stratosphere and sometimes move winter storms, are known as
a.
trade winds.
c.
polar easterlies.
b.
westerlies.
d.
jet streams.
 

 16. 

At the poles, cold air
a.
rises.
c.
freezes.
b.
warms.
d.
sinks.
 

 17. 

Which of the following statements describing a sea breeze is true?
a.
Air over the water is cooler, which creates an area of high pressure.
b.
Air over the water is cooler, which creates an area of low pressure.
c.
Air over the water is warmer, which creates an area of low pressure.
d.
Air over the water is warmer, which creates an area of high pressure.
 

 18. 

Which of the following statements describing a land breeze is true?
a.
Air over the water is cooler, which creates an area of high pressure.
b.
Air over the water is cooler, which creates an area of low pressure.
c.
Air over the water is warmer, which creates an area of low pressure.
d.
Air over the water is warmer, which creates an area of high pressure.
 

 19. 

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

 20. 

   At the seashore late in the afternoon on a hot, sunny day, a person often feels a strong breeze coming in from the ocean. Which of the following is the reason for the breeze?  
a.
  The pounding waves generate air currents.  
b.
  The warm air over the ocean rushes in to replace the cool air that rises over the land.  
c.
  The heavy, cool air over the ocean rushes in to replace the warm air that rises over the land.  
d.
  There are no clouds to block the wind coming in from the ocean.  
 

 21. 

   The jet stream has a great impact on changing weather conditions in an area because it  
a.
  does not change with the seasons.  
b.
  keeps the atmosphere supplied with moisture.  
c.
  separates cold arctic air from warmer tropical air.  It is like a fence between these air masses.
d.
  speeds up evaporation following precipitation.  
 

 22. 

   Nights tend to be cooler than days because  
a.
  winds blow more strongly at night.  
b.
  the part of Earth in darkness receives less energy.  
c.
  cooler air in the upper atmosphere drops closer to Earth's surface.  
d.
  water vapor condenses when it is cooled.  
 

 23. 

   The phenomenon that causes the winds to be deflected to the left or right due to Earth's rotation is called  
a.
  Steno's laws.  
c.
  the nebular hypothesis.  
b.
  the Coriolis effect.  
d.
  differentiation.  
 

 24. 

   Which diagram best represents the movement of air according to the surface temperature conditions shown?  
a.
  mc024-1.jpg
c.
  mc024-3.jpg
b.
  mc024-2.jpg
d.
  mc024-4.jpg
 



 
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