2. The atmospheres of terrestrial planets :
a. typically are rich in nitrogen and oxygen.
b. typically formed as a result of photosynthesis by plants.
c. are composed of heavy gasses.
d. are primary atmospheres.

3. The most abundant gas in Mars' atmosphere is:
a. nitrogen
b.carbon dioxide
c. oxygen
d. hydrogen

4. The Earth's atmosphere is unique in the solar system.
a. True
b. False

5. The high temperatures Venus are attributed to:
a. The absence of water on the planet's surface.
b. An abundance of carbon dioxide in the planet's atmosphere.
c. The greenhouse effect
d. All of the above
d. b and c

6. The most abundant gas in the Earth's atmosphere is:
a. oxygen
b. carbon dioxide
c. nitrogen
d. none of the above

7. What factor best explains the composition of the Earth current atmosphere?
a. Volcanic outgassing
b. Photosynthesis
c. Removal of carbon dioxide by sinks
d. All of the above
e. b and c

8. Why is there a noticeable lack of hydrogen and helium in the inner portion of the solar system?
a. Hydrogen and helium are light gases.
b. It was swept away by T-Tauri winds.
c. The planets in the inner solar system have high escape velocities.
d. Most of the hydrogen combined with oxygen to form water.
e. a and b

9. Which of the following statements is false?
a. Ozone absorbs ultraviolet radiation
b. Ozone is triatomic oxygen.
c. Ozone is a significant greenhouse gas.
d. Beneficial ozone is created in the stratosphere.

10. The lower troposphere is warmer than the upper troposphere because:
a. It is heated by energy from the Sun
b. It is heated by energy reradiated from the surface of the Earth.
c. It is heated by energy absorbed by ozone
d. None of the above

11. The escape velocity of a planet is determined by its:
a. age
b. distance from the Sun
c. density
d. mass

12. Which gas absorbs ultraviolet radiation?
a. oxygen
b. ozone
c. nitrogen
d. none of the above

13. The layer of the Earth's atmosphere closest to its surface is:
a. the troposphere
b. the stratosphere
c. the mesosphere
d. the thermosphere

14. Which of the following is important in making conditions on the Earth suitable for life?
a. The absorption of longwave electromagnetic radiation by the atmopshere.
b. The absorption of ultraviolet radiation by carbon dioxide.
c. The absorption of some infrared energy by greenhouse gases
d. The absorption of carbon dioxide by sinks.
e. All of the above
f. c and d

15. Which of the following wavelengths would transmit the least amount of energy ?
a. 400 meters
b. 10 meters
c. 10^-3 meters
d. Wavelength and energy are unrelated

16. Which of the following is considered a greenhouse gas?
a. ozone
b. oxygen
c. methane
d. carbon dioxide
e. c and d
f. a, c and d

17. Which of the following is/are properties of cold air?
a. It tends to contain a lot of moisture.
b. It is associated with convergence aloft.
c. It is generally buoyant air.
d. It is associated with low barometric pressure.

18. Which of the following is/are properties of centers of low pressure?
a. It tends tends to to be associated with precipitation.
b. It tends to be associated with cloud formation.
c. It is commonly buoyant air.
d. All of the above
e. a and c

Figure 1:

19. Look at figure 1. Which portion of the Earth is receiving the greatest amount of energy at this time? a. the northern hemisphere b. the equator c. the southern hemisphere d. the Tropic of Cancer e. the Tropic of Capricorn

20. What seasonal phenomenon would produce the energy distribution illustrated in figure 1?
a. a summer solstices in the northern hemisphere
b. an equinox
c. a winter solstice in the southern hemisphere
d. insufficient information

21. At what latitude would the Sun be directly overhead on June 22?
a. 0 degrees
b. 90 degrees north.
c. 90 degrees south
d. 23.5 degrees north
e. 23.5 degrees south

Figure 2
22. Which of the following statements about figure 2 is true?
a. It is a summer solstice in the northern hemisphere.
b. It is winter solstice in the southern hemisphere.
c. It is a spring equinox in the southern hemisphere.
d. The south pole would experience 24 hours of darkness.
e. a and b
f. a, b and d

23. Does the Sun ever get directly overhead Baltimore. (Baltimore is located at a latitude of 39^o N.)
a. Yes
b. No

24. Between what latitudes does the Sun get directly overhead?
a. between 67.5 degrees north and 67.5 degrees south
b. between 23.5 degrees north and the equator
c. betweeen 23.5 degreen north and 23.5 degrees south
b. the westerlies

25. If the Earth were tilted 40 degrees, which of the following statements is true?
a. The Tropic of Cancer would be located at 40 degrees south
b. The Tropic of Cancer would be located at 23.5 degrees north
c. The Tropic of Capricorn would be located at 40 degrees south
d. The Earth's tilt is unrelated to the location of the Tropic of Cancer and the Tropic of Capricorn

26. What prevailing wind system prevails between the latitudes of 60^o and 90^o?
a. the trade winds
b. the westerlies
c. the easterlies

27. Which of the following statements is false?
a. The trade winds are the prevailing winds system located betweeen 30^o and the equator.
b. The trade winds are associated with the equatorial low and the subtropical high.
c. The trade winds blow from east to west.
d. None of the above statements is false.

28. If you lived at a latitude of 50 S, which of the following statements would be true?
a. Your prevailing winds would come from the west.
b. You would be influenced by the easterlies.
c. You would be influenced by the trade winds.
d. Insufficient information.

29. What pressure system is located at 30^o S?
a. the equatorial low
b. the subtropical high
c. the subpolar low
d. the polar high

30. The Coriolis effect is due to the Earth's rotation.
a. True
b. False

31. If the Earth were rotation westward instead of eastward, which of the folloiwng statements would be true?
a. Atmospheric curculation would be the same is it is now.
b. The path of objects in the northern hemisphere would be deflected to the left.
c. the westerlies would become the easterlies
d. the trade winds would blow from east to west.
e. b and c
f. b, c and d

32. Which of the following statements about the feature labelled C is incorrect?
a. It is associated with low pressure.
b. It located at a latitude of approximately 30 degrees north latitude.
c. Air is rising.
d. All of the above are correct.

33. Which of the following statements about the feature labelled F is false?
a. It is a portion of the Earth that lies between 30^o and 60^o north latitude.
b. It is dominated by the trade winds.
c. Prevailing winds are from west to east.
d. a and c

34. Since preciptation is associated with low pressure systems, with which letter would you associate with high precipitation?
a. A
b. B
c. F
d. D