The Atmosphere and Earth's Motions Multiple Choice Quiz, Physical Geography, College of Alameda
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College of Alameda Physical Geography
The Atmosphere and Earth's Motions Multiple Choice Quiz

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Important:   When you answer a question, a response box will appear.   You must close this response box before continuing the quiz.  There are 15 questions in this quiz.
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1. The atmosphere is an envelope of gases that is held to the earth by:

Magnetic Fields
Atmospheric pressure
The force of gravity
Molecular bonding
2. Carbon dioxide in the atmosphere is most important as a:
Filter for ultraviolet light
Heat absorber
Reflector of sunlight
Source of latent heat
3. The most important gas in the atmosphere for weather and climate is:
Ozone
Carbon dioxide
Nitrogen
Oxygen
Water vapor
4. Dust is important in the atmosphere because it:
Causes rain to fall
Gives clouds their white color
Provides a solid surface for condensation
Collects heat for the evaporation of water
5. What causes the red and yellow colors of sunset and sunrise?
Dust in the atmosphere
Insects
Carbon dioxide
Argon
6. Weather processes are concentrated in the:
Troposphere
Stratosphere
Mesosphere
Thermosphere
7. Within the troposphere,
Temperatures rise with increasing altitude above the earth
Temperatures remain steady after 2000 feet
Temperatures decrease with increasing altitude above the earth
8. The ozone layer is believed to shield the earth's surface from:
Infrared rays
Ultraviolet rays
Microwaves
Reflected rays
9. If the rate of the earth's rotation were increased, it would cause:
Shorter days and nights
Longer seasons
Shorter seasons
10. The path traced by the earth in its orbit around the sun is called the:
Angle of inclination
Plane of rotation
Circle of illumination
Plane of the ecliptic
11. Which one of the following statements is TRUE?
The tilt of the earth's axis is 23-1/2 degrees from the plane of the ecliptic.
The tilt of the earth's axis changes during its revolution around the sun.
The tilt of the earth's axis is 66-1/2 degrees from the plane of the ecliptic.
12. What is the best explanation for earth's seasons?
The earth's changing distance from the sun
Revolution, rotation, and the parallelism of the earth's axis as it orbits the sun
Revolution, the tilt of the earth's axis, and parallelism of the earth's axis as earth orbits the sun
The tilt of the earth's axis
13. Which one of the following best describes the equinoxes?
They occur in June and December
Day and night are of equal length all over the world
The vertical rays of the sun are overhead at noon at the Tropic of Cancer
Days are 24 hours long at the Arctic and Antarctic Circles
14. The maximum possible energy is received by a surface when the sun's rays strike the earth at an angle of:
90 degrees
9 degrees
23-1/2 degrees
45 degrees
15. The sun's rays are most direct and the length of day is longest in the southern hemisphere on:
March 21
June 21
September 23
December 22

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