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Name ______________________________ Class __________________ Date __________________
Chapter Test A
Atmosphere and Climate Change
In the space provided, write the letter of the term or phrase that best matches
the description.
_____ 1. decomposed by chlorine atoms
a. DNA damage
_____ 2. vertical sunlight
b. surface ocean currents
_____ 3. trade winds, westerlies, and polar
c. equatorial regions
d. CO2
_____ 4. a greenhouse gas added to the
e. El Niño
atmosphere when fossil fuels are
f. La Niña
g. prevailing winds
_____ 5. winds push warm water eastward
h. Montreal Protocol
in the Pacific Ocean
i. greenhouse effect
_____ 6. international limits on CFC
j. ozone molecules
production to protect the
ozone layer
_____ 7. result of high UV radiation at
Earth’s surface
_____ 8. process by which the atmosphere
reradiated infrared radiation back to Earth’s surface, keeping it warm
_____ 9. water is cooler than usual in the eastern Pacific Ocean
_____ 10. caused by wind and influenced by Earth’s rotation
Choose the one best response. Write the letter of that choice in the
space provided.
_____ 11. Weather is a region’s
a. long-term, prevailing
atmospheric conditions.
b. number of seasonal
daylight hours.
c. atmospheric conditions
on a given day.
d. lack of ocean currents.
_____ 12. As cold air sinks,
a. it expands and
cools further.
b. it compresses
and warms.
c. it remains at the
same pressure and
d. it always releases
water vapor.
© Houghton Mifflin Harcourt Publishing Company
Holt McDougal Environmental Science
Atmosphere and Climate Change
Name ______________________________ Class __________________ Date __________________
Chapter Test A continued
_____ 13. Elevation is a factor in climate because under most conditions,
a. temperature falls as elevation increases.
b. temperature rises as elevation increases.
c. temperature is not affected by elevation.
d. snowfall is unlikely at high elevation.
_____ 14. Seasonal changes in daylight hours and climatic conditions are
caused by
a. the annual change of distance from sun to Earth.
b. ocean currents.
c. lunar phases.
d. the 23.5º tilt of Earth’s axis.
_____ 15. The ozone layer protects living organisms on Earth by
a. enhancing solar energy.
b. blocking solar ultraviolet (UV) radiation.
c. blocking solar infrared (IR) radiation.
d. preventing escape of water vapor.
_____ 16. Ozone holes appear in polar regions during springtime when
a. chlorine atoms are released from polar stratospheric clouds.
b. chlorine atoms are captured by polar stratospheric clouds.
c. CFCs are synthesized in polar stratospheric clouds.
d. CFCs magnify ultraviolet light.
_____ 17. Though CFC production has been curtailed, the threat to upper
atmospheric ozone continues because CFCs
a. become harmless quickly.
b. break down ozone for only a short time.
c. persist but stop breaking down ozone.
d. persist and continue to break down ozone for decades
_____ 18. Which of the following does not reduce CO2 in the atmosphere?
a. animal respiration
c. oceans
b. tropical rain forests
d. phytoplankton
_____ 19. A continuous record of annual average atmospheric CO2 concentrations
from Mauna Loa, Hawaii, reveals
a. a steady increase since 1988.
c. a steady decrease since 1958.
b. no change since 1958.
d. a steady increase since 1958.
_____ 20. Which of the following would not be a consequence of an increase in
global temperature
a. increased frequency of major droughts
b. increased frequency of major storms
c. increased polar ice mass
d. rising sea level
© Houghton Mifflin Harcourt Publishing Company
Holt McDougal Environmental Science
Atmosphere and Climate Change