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1. The combined mass of water on the surface of the earth is called ___________________.

a.  hydrosphere 
b.  troposphere
c.  stratosphere



2. The study of climate, weather patterns, and cloud formation is called ___________________.

a.  sociology
b.  meteorology 
c.  physiology



3. The invisible layer of gas that surrounds the earth is called __________________.

a.  cloud formation
b.  the atmosphere 
c.  the sky



4. The ratio between the moisture in the air at a given temperature and the total amount air is capable of holding at the same temperature is called _____________________.

a.  relative humidity 
b.  exact humidity
c.  natural humidity



5. Water droplets from the atmosphere in the form of rain, snow, or sleet is known as precipitation.

a.  True 
b.  False



6. There is less humidity in the winter than in the summer.

a.  True
b.  False



7. A _______________ occurs when two air masses collide and a boundary between the two masses forms.

a.  a hurricane
b.  a front 
c.  a tornado



8. Very isolated strong updrafts of warm moist air over land create the potential for a(n) ______________.

a.  hurricane
b.  earthquake
c.  tornado 



9. Warm moist air over the tropics helps create the perfect condition for which of the following?

a.  hurricane 
b.  earthquake
c.  tornado



10. A meteor that shoots through the sky is called a ______________.

a.  pulsar
b.  quasar
c.  shooting star



11. Tall towering clouds that often produce thunderstorms are called _______________.

a.  cumulus clouds
b.  cumulonimbus clouds 
c.  cirrus clouds



12. Large thick fluffy clouds that usually come with good weather are called ______________.

a.  cumulus clouds
b.  cumulonimbus clouds
c.  cirrus clouds



13. Thin wispy white clouds that are high in altitude are called ____________. 

a.  cumulonimbus clouds
b.  stratus clouds
c.  cirrus clouds 



14. A low gray blanket of clouds that covers the sky and often produces drizzle or snow, depending on the temperature are called _____________.

a.  cumulonimbus clouds
b.  stratus clouds 
c.  cumulus clouds

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Science:  The Earth's Atmosphere - Quiz