Indicate the answer choice that best completes the statement or answers the question.
1. Which of the following statements accurately compares how air density and air pressure decrease as atmospheric
altitude increases?
a. Air density decreases much less than air pressure decreases.
b. Air density decreases much more than air pressure decreases.
c. Air density decreases in much the same way as air pressure decreases.
d. Air density decreases in a completely different way than air pressure decreases.
2. In which of the following atmospheric layers does most of the Earth’s weather occur?
a. troposphere
b. thermosphere
c. stratosphere
d. mesosphere
3. How much oxygen occupies a volume of air near the Earth’s surface?
a. 21%
b. 43%
c. 78%
d. 84%
4. Which of the following gases absorbs most of the harmful ultraviolet radiation in the stratosphere?
a. nitrous oxide
b. carbon dioxide
c. ozone
d. chlorofluorocarbon
s
5. Over which of the following areas does an ozone hole form annually during the southern hemisphere’s spring?
a. Argentina
b. Antarctica
c. South Africa
d. Australia
6. Which of the following descriptions correctly applies to Jupiter’s “Great Red Spot”?
a. It is a huge crater.
b. It is a huge volcano.
c. It is a huge cloud of water
vapour.
d. It is a huge spinning eddy.
7. Which of the following is representative of an inversion?
a. the outgassing produced by volcanoes
b. nitrous oxide
c. condensation on a drinking glass
d. the stratosphere
,Name: Class: Date:
chapter 1
8. Which of the following atmospheric layers is the hottest?
a. mesosphere
b. troposphere
c. thermosphere
d. stratosphere
9. Which of the following equations accurately expresses the relationship between weight, mass, and gravity?
a. weight = mass + gravity
b. weight = mass × gravity
c. weight = mass – gravity
d. weight = mass
gravity
10. Which of the following gases varies the most from place to place and from time to time in the lower atmosphere?
a. ozone
b. water vapour
c. carbon dioxide
d. methane
11. Which of the following planets does not have an atmosphere?
a. Mars
b. Mercury
c. Jupiter
d. Venus
12. Which of the following conditions occurs during a temperature inversion?
a. Air temperature increases with increasing height.
b. Air temperature remains constant with increasing
height.
c. Air temperature decreases with increasing height.
d. Air temperature is warmer at night than during the day.
13. How many molecules are contained in a single breath of air?
a. 102 molecules
b. 106 molecules
c. 1022 molecules
d. 1026 molecules
14. Which of the following has been the primary source of oxygen for the Earth’s atmosphere in recent geological times?
a. volcanic
eruptions
b. transpiration
c. photodissociation
d. photosynthesis
, Name: Class: Date:
chapter 1
15. In which of the following cities would a hit baseball travel farthest?
a. Calgary
b. Toronto
c. Montreal
d. Halifax
16. Which of the following is the name for the electrified region of the upper atmosphere?
a. stratosphere
b. ionosphere
c. mesosphere
d. thermosphere
17. Large increases in which of the following gases would lead to a changing global climate?
a. methane
b. argon
c. helium
d. nitrogen
18. In which of the following settings would a breath of air contain much fewer molecules than a breath of air taken at sea
level?
a. standing at the top of a 7000 metre-high
mountain
b. on the roof of a high-rise building
c. standing at the top of a hill
d. in an underground cave
19. If the number of molecules in an air parcel was fixed and the volume of the parcel was to decrease, then which of the
following would result?
a. The mass would increase.
b. The density would increase.
c. The mass would decrease.
d. The density would decrease.
20. Which of the following describes water vapour?
a. It is a liquid
b. It is a raindrop
c. It is a gas
d. It is a cloud
droplet
21. Which of the following terms refers to the amount of force exerted over an area of surface?
a. pressure
b. density
c. temperature
d. weight
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