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Weather Review

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

 1. 

   Which of the following are large, puffy, white clouds?  
a.
  cumulus  
c.
  nimbus  
b.
  stratus  
d.
  cirrus
 

 2. 

   Which must be present before a hurricane can develop?  
a.
  a high pressure cell  
c.
  a warm front  
b.
  warm, moist air  
d.
  cool, turbulent air  
 

 3. 

weatherunittest_files/i0040000.jpg
What process occurs at A?
a.
precipitation
c.
evaporation
b.
condensation
d.
transpiration
 

 4. 

weatherunittest_files/i0050000.jpg
What process occurs at B?
a.
precipitation
c.
runoff
b.
evaporation
d.
transpiration
 

 5. 

____ occurs when water vapor cools and changes back into liquid droplets.
a.
Evaporation
c.
Transpiration
b.
Condensation
d.
Runoff
 

 6. 

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

 7. 

A ____ air mass develops over warm waters in the Gulf of Mexico and the North Atlantic Ocean and move across the East Coast  of Georgia and into the Midwest.
a.
continental tropical (cT)
c.
continental polar (cP)
b.
maritime polar (mP)
d.
maritime tropical (mT)
 

 8. 

   What are the two dominant elements in Earth's atmosphere?  
a.
  oxygen and carbon dioxide  
c.
  nitrogen and oxygen  
b.
  hydrogen and helium  
d.
  silicon and hydrogen  
 

 9. 

Clouds that form in layers are called
a.
stratus clouds.
c.
cumulus clouds.
b.
nimbus clouds.
d.
cirrus clouds.
 

 10. 

weatherunittest_files/i0110000.jpg
In which sections do the trade winds occur?
a.
section 1 & 2
c.
section 3 & 4
b.
section 2 & 3
d.
section 2 & 4
 

 11. 

Which device is used to measure air pressure?
a.
barometer
c.
anemometer
b.
thermometer
d.
windsock or wind vane
 

 12. 

   Clouds form when water vapor in the air  
a.
  condenses around dust particles  
c.
  rises too high to fall to the ground.  
b.
  rises and disappears.  
d.
  encounters a warm front.  
 

 13. 

   The energy source that powers Earth's water cycle is  
a.
  Earth's rotation.  
c.
  radiation from Earth's core.  
b.
  heat from the Sun.  
d.
  the Sun's gravity.
 

 14. 

A ____ air mass is a cold air mass that forms over the polar regions.
a.
continental (c)
c.
maritime (m)
b.
tropical (T)
d.
polar (P)
 

 15. 

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

 16. 

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

 17. 

____ is water, usually from precipitation, that flows across land and collects in rivers, streams, and eventually the ocean.
a.
Runoff
c.
Relative humidity
b.
Humidity
d.
Condensation
 

 18. 

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

 19. 

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

 20. 

   Dew is formed by  
a.
  the condensation of water vapor.  
b.
  frost melting just before sunrise.  
c.
  groundwater being pulled to Earth's surface.  
d.
  transpiration performed by plants.  
 

 21. 

The process of liquid water changing to gas is called
a.
precipitation.
c.
evaporation.
b.
condensation.
d.
water vapor.
 

 22. 

____ occurs when rain, snow, sleet, or hail falls from the clouds onto the Earth's surface.
a.
Precipitation
c.
Evaporation
b.
Condensation
d.
Transpiration
 

 23. 

   An air mass gets its temperature and humidity from  
a.
  the land or water over which it forms.  
c.
  the latitude at which it forms.  
b.
  changes in the upper atmosphere.  
d.
  the air masses that surround it
 

 24. 

   Most water vapor in the atmosphere comes from  
a.
  evaporation from oceans.  
c.
  transpiration from plants.  
b.
  evaporation from soil.  
d.
  the burning of fossil fuels.  
 

 25. 

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

 26. 

When -nimbus or nimbo- is part of a cloud's name, it means that
a.
the cloud is at a high altitude.
b.
it is a middle cloud.
c.
precipitation might fall from the cloud.
d.
it is a low cloud.
 

 27. 

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

 28. 

   Cold air masses that form at high latitudes are called  
a.
  polar air masses.  
c.
  warm air masses.  
b.
  continental air masses.  
d.
  maritime air masses
 

 29. 

A ____ air mass is a warm air mass that develops over the Tropics.
a.
polar (P)
c.
maritime (m)
b.
tropical (T)
d.
continental (c)
 

 30. 

An area of low pressure around the equator that sailors hated is called the
a.
convection cells.
c.
doldrums.
b.
horse latitudes.
d.
jet streams.
 

 31. 

A ____ air mass is a wet air mass that forms over water.
a.
maritime (m)
c.
polar (P)
b.
continental (c)
d.
tropical (T)
 

 32. 

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

 33. 

A maritime tropical air mass contains
a.
warm, wet air.
c.
warm, dry air.
b.
cold, moist air.
d.
cold, dry air.
 

 34. 

Most of the heat from equatorial regions is moved toward the poles by
a.
convection.
c.
conduction.
b.
radiation.
d.
precipitation.
 

 35. 

   Which diagram best represents the movement of air according to the surface temperature conditions shown?  
a.
  weatherunittest_files/i0360000.jpg
c.
  weatherunittest_files/i0360001.jpg
b.
  weatherunittest_files/i0360002.jpg
d.
  weatherunittest_files/i0360003.jpg
 

 36. 

Wind belts between 30º and 60º latitude in both the Northern and Southern Hemispheres are called the _________.  They are the winds that affect our weather.
a.
westerlies.
c.
trade winds.
b.
polar easterlies.
d.
jet streams.
 

 37. 

A ____ air mass is a dry air mass that forms over land.
a.
polar (P)
c.
maritime (m)
b.
continental (c)
d.
tropical (T)
 

 38. 

   Which two physical changes are essential processes in the water cycle?  
a.
  oxidation and reduction  
c.
  mixing and separating  
b.
  evaporation and condensation  
d.
  ebbing and flowing  
 

 39. 

   An air mass forms over the Gulf of Mexico and moves northeast across Georgia. What weather conditions are likely to prevail in Georgia?  
a.
  cool and dry  
c.
  warm and dry  
b.
  cool and humid  
d.
  warm and humid  
 

 40. 

   Wind results when two air masses collide that have a difference in  
a.
  size.  
c.
  latitude.  
b.
  pressure.  
d.
  altitude.  
 

 41. 

   The temperature at which the air becomes saturated and condensation begins is called the  
a.
  relative humidity.  
c.
  absolute humidity.  
b.
  dew point.  
d.
  critical temperature.  
 

 42. 

   Which step in the water cycle returns water to the atmosphere?  
a.
  evaporation  
c.
  precipitation  
b.
  condensation  
d.
  saturation  
 

 43. 

Water vapor in the atmosphere is a
a.
gas.
c.
liquid.
b.
solid.
d.
All of the above
 

 44. 

   In the morning, Mary noticed there was dew on the grass. In the afternoon, the grass was dry. What most likely happened to the water?  
a.
  It went into the ground.  
c.
  It formed clouds.  
b.
  It went into the air.  
d.
  It no longer exists.  
 

 45. 

   In some years there are more hurricanes than usual. This is probably because  
a.
  the ocean is warmer than usual.  
b.
  the ozone layer is very thin.  
c.
  there are more windy days than usual.  
d.
  the gravitational pull of the Moon is stronger.  
 

 46. 

The most common form of precipitation is liquid water that falls from the clouds to Earth. This type of precipitation is called
a.
snow.
c.
hail.
b.
rain.
d.
sleet.
 

 47. 

   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.  
 

 48. 

Lightning is seen before thunder is heard because
a.
storm winds slow down sound waves.
c.
light travels faster than sound.
b.
sound is created slowly.
d.
ice crystals in clouds absorb sounds.
 

 49. 

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
 

 50. 

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.
 

 51. 

Large thunderhead clouds that produce precipitation are called ____ clouds.
a.
nimbostratus
c.
cumulus
b.
cumulonimbus
d.
stratus
 

 52. 

   Which process is most important to the water cycle?  
a.
  flooding  
c.
  evaporation  
b.
  erosion  
d.
  farm irrigation  
 

 53. 

   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.  
 



 
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