Florida Science Grade 6

Section 1: The Atmosphere

The Atmosphere

1.
Which one of the following is NOT a function of the atmosphere?
A)It provides necessary gases to support life.
B)It protects living things from X-ray radiation.
C)It absorbs and distributes warmth.
D)It keeps us from floating into space.
2.
Air exerts pressure because it has __________.
A)height
B)space
C)size
D)weight
3.
Nitrogen and oxygen make up __________ percent of the atmosphere.
A)99
B)84
C)50
D)11
4.
Which atmospheric gas is critical to weather formation?
A)water vapor
B)carbon dioxide
C)nitrogen
D)oxygen
5.
Dust particles in the atmosphere are examples of __________.
A)aerosols
B)gases
C)vapors
D)ions
6.
Which layer of the atmosphere contains nearly all clouds and weather?
A)thermosphere
B)ionosphere
C)troposphere
D)stratosphere
7.
Ozone found in the stratosphere is important because it absorbs __________ from the Sun.
A)ultraviolet radiation
B)X-ray radiation
C)sunlight
D)ions
8.
AM radio waves are reflected by the __________.
A)ionosphere
B)troposphere
C)stratosphere
D)exosphere
9.
Water vapor enters the atmosphere through the process of __________.
A)absorption
B)reflection
C)evaporation
D)condensation
10.
The process of __________ results in water droplets returning to Earth.
A)evaporation
B)condensation
C)conduction
D)absorption
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.