Chapter 3 - Introduction to the Atmosphere Flashcards
2) A major characteristic of the troposphere is the ________.
A) decrease of temperature with increasing altitude
B) presence of the ozone layer
C) total absence of water vapor
D) increase of pressure with altitude
E) hottest temperatures in the atmosphere
A) decrease of temperature with increasing altitude
3) Above \_\_\_\_\_\_\_\_ kilometer(s), the atmospheric pressure is so slight as not to register on an ordinary barometer. A) 0.8 B) 8 C) 80 D) 800 E) 8,000
C) 80
4) The controls of weather and climate include all but which of the following?
A) the distribution of land and water
B) latitude
C) the plane of the Equator
D) the general circulation of the ocean currents
E) altitude
C) the plane of the Equator
5) The normal percent of water vapor in dry air is \_\_\_\_\_\_\_\_ percent. A) 0-4 B) 5-10 C) 15-20 D) 25-30 E) 45-50
A) 0-4
6) The segment of the atmosphere which blends into interplanetary space is called the \_\_\_\_\_\_\_\_. A) troposphere B) exosphere C) stratosphere D) mesosphere E) thermosphere
B) exosphere
7) The side of a mountain sheltered from prevailing winds is the \_\_\_\_\_\_\_\_. A) windward B) leeward C) Coriolis D) meridional E) sunnier
B) leeward
8) The third most plentiful gas in the Earth's lower atmosphere is \_\_\_\_\_\_\_\_. A) nitrogen B) oxygen C) argon D) neon E) helium
C) argon
9) Oxygen (O2) is being added to the atmosphere by A) solar radiation. B) animal decomposition. C) meteorites. D) vegetation. E) the burning of coal.
D) vegetation.
10) \_\_\_\_\_\_\_\_ is (are) crucial to the formation of clouds in the atmosphere. A) Ozone B) Argon C) Neon D) Particulates E) Lightning
D) Particulates
11) With the exception of water vapor, \_\_\_\_\_\_\_\_ is the most plentiful of the variable gases in the atmosphere. A) argon B) carbon dioxide C) sulfur dioxide D) ozone E) carbon monoxide
B) carbon dioxide
12) The segment of the atmosphere in which gases maintain an approximately uniform composition is the \_\_\_\_\_\_\_\_. A) homosphere B) exosphere C) ionosphere D) stratosphere E) troposphere
A) homosphere
13) A variable gas in the atmosphere nearly absent from the higher elevations is \_\_\_\_\_\_\_\_. A) carbon dioxide B) ozone C) sulfur dioxide D) carbon monoxide E) water vapor
E) water vapor
14) At an elevation of 16 kilometers (in the lower stratosphere), atmospheric pressure is approximately one-\_\_\_\_\_\_\_\_ of what it is at the surface. A) tenth B) thousandth C) quarter D) half E) hundredth
A) tenth
15) The \_\_\_\_\_\_\_\_ is the layer of the atmosphere where electrified atoms are plentiful. A) thermosphere B) ionosphere C) troposphere D) exosphere E) stratosphere
B) ionosphere
16) The main impact of ozone on life on the Earth’s surface is to ________.
A) provide oxygen for the atmosphere
B) reduce ultraviolet solar radiation
C) serve as nucleus for cloud formation
D) act as a lid preventing gases from escape
E) initiate violent storms
B) reduce ultraviolet solar radiation
17) The lower 80 kilometers or so in the atmosphere in which gases are found in uniform proportions is the \_\_\_\_\_\_\_\_. A) heterosphere B) homosphere C) ionosphere D) exosphere E) stratosphere
B) homosphere
18) One-half of the atmosphere lies below the elevation of \_\_\_\_\_\_\_\_ kilometers. A) 0.56 B) 5.6 C) 56 D) 560 E) 5,600
B) 5.6
19) The atmospheric layer in which gases do not maintain a uniform composition is the \_\_\_\_\_\_\_\_. A) ionosphere B) homosphere C) troposphere D) heterosphere E) none of the above
E) none of the above
20) It is really improper to discuss or classify climate with any record less than \_\_\_\_\_\_\_\_. A) several weeks B) 1 year C) 5 years D) several decades E) 100 years
D) several decades
1) The main component of the lower atmosphere by total volume is \_\_\_\_\_\_\_\_. A) oxygen B) nitrogen C) helium D) argon E) water vapor
B) nitrogen
21) The approximate, indistinct outer boundary of the atmosphere extends outward at least \_\_\_\_\_\_\_\_ kilometers above the surface. A) 1,000 B) 2,500 C) 5,000 D) 6,000 E) thousands of kilometers
E) thousands of kilometers
22) Over warm oceans, water vapor is at its maximum and comprises about \_\_\_\_\_\_\_\_ percent of the volume of the atmosphere. A) 1 B) 4 C) 10 D) 25 E) 50
B) 4
23) Which of the following is NOT gaseous in the atmosphere? A) argon B) clouds C) neon D) helium E) water vapor
B) clouds
24) A main absorber of ultraviolet radiation in the atmosphere is \_\_\_\_\_\_\_\_. A) argon B) neon C) ozone D) carbon dioxide E) dust
C) ozone
25) The homosphere includes the lowest \_\_\_\_\_\_\_\_ kilometers of the atmosphere. A) 0.8 B) 8 C) 80 D) 800 E) 8,000
C) 80
26) Thousands of kilometers above the surface is the upper limit of the \_\_\_\_\_\_\_\_. A) atmosphere B) homosphere C) troposphere D) thermosphere E) none of the above
A) atmosphere
27) Water vapor is nearly absent ________.
A) in the upper reaches of the atmosphere
B) in the lower reaches of the atmosphere
C) in the troposphere
D) in the atmosphere over sea surfaces
E) in the atmosphere over land surfaces
A) in the upper reaches of the atmosphere
28) The exosphere marks the outward limit of the \_\_\_\_\_\_\_\_. A) troposphere B) stratosphere C) atmosphere D) thermosphere E) geosphere
C) atmosphere
29) Most surface winds in the tropics \_\_\_\_\_\_\_\_. A) come from the east B) come from the west C) originate in the Sahara D) originate in the Amazon basin E) originate in the Australian desert
A) come from the east
30) Mountains act as major climatic barriers with the sheltered or \_\_\_\_\_\_\_\_ side receiving less moisture than the exposed side. A) windward B) struck C) leeward D) Coriolis E) north
C) leeward
31) Argon is the \_\_\_\_\_\_\_\_ most plentiful gas in the atmosphere. A) single B) second C) third D) fourth E) fifth
C) third
32) Nitrogen is the \_\_\_\_\_\_\_\_ component of the atmosphere in terms of volume. A) main B) second C) third D) fourth E) fifth
A) main
33) \_\_\_\_\_\_\_\_ is (are) responsible for placing oxygen in the atmosphere. A) Automobile exhaust B) Burning C) Chlorofluorocarbons D) Lightning strikes E) Plants
E) Plants
34) On the average, the tropopause is highest above the surface over the \_\_\_\_\_\_\_\_. A) North Pole B) Arctic Circle C) South Pole D) Equator E) Antarctic Circle
D) Equator
35) Oxygen is the \_\_\_\_\_\_\_\_ component of the atmosphere in terms of volume. A) main B) second C) third D) fourth E) fifth
B) second
36) In general, warm ocean currents are located \_\_\_\_\_\_\_\_ of the continents. A) east B) west C) equatorward D) poleward E) south
A) east
37) Vertical mixing and turbulence are most characteristic of the \_\_\_\_\_\_\_\_. A) troposphere B) exosphere C) thermosphere D) mesosphere E) stratosphere
A) troposphere
38) The most basic factor causing the distribution of hot and cold temperatures over Earth's surface is \_\_\_\_\_\_\_\_. A) the general circulation B) oceanic circulation C) latitude D) topography E) storms
C) latitude
39) Air is best described as a(n) A) chemical compound. B) element. C) mixture. D) colloid. E) particulate.
C) mixture.
40) The influence on climate of carbon dioxide is mainly due to its ability to absorb \_\_\_\_\_\_\_\_. A) water B) infrared radiation C) helium D) argon E) ions
B) infrared radiation
41) Which of the following is a "climate element" and NOT a "weather element"? A) temperature B) moisture C) pressure D) wind E) latitude
E) latitude
42) Which of the following is an atmospheric gas? A) oxygen B) nitrogen C) carbon dioxide D) water vapor E) They are all gases.
E) They are all gases.
43) Which of the following would be most variable at your location on a day-to-day basis? A) oxygen B) nitrogen C) carbon dioxide D) water vapor E) They all vary.
D) water vapor
44) The ozone layer is in that portion of the atmosphere known as the A) troposphere. B) mesosphere. C) stratosphere. D) heterosphere. E) ionosphere.
C) stratosphere.
45) Which of the following substances is closely associated with the breakdown of the ozone layer? A) carbon dioxide B) chlorofluorocarbons C) nitrogen oxides D) water vapor E) infrared radiation
B) chlorofluorocarbons
46) A "hole" in the ozone layer was first discovered over A) Antarctica B) the Equator C) the United States D) Africa E) Hollywood
A) Antarctica
47) Which of the following is an important source of particles in the atmosphere? A) salt from the sea B) volcanic eruptions C) emissions from engines D) soot from fires E) all of the above
E) all of the above
48) In the atmosphere, the temperature decreases with increasing altitude in the \_\_\_\_\_\_\_\_ and the \_\_\_\_\_\_\_\_. A) thermosphere, mesosphere B) mesosphere, stratosphere C) stratosphere, troposphere D) troposphere, mesosphere E) troposphere, thermosphere
D) troposphere, mesosphere
49) Which of the following is NOT considered a climatic control? A) temperature B) latitude C) general circulation of oceans D) topographic barriers E) distribution of land and water
A) temperature
50) Given the relationship between altitude and atmospheric pressure, the pressure at 20 kilometers above the surface is
A) almost the same as it is at the surface.
B) too high for humans.
C) tiny, compared to sea level.
D) about three-quarters that of sea level.
E) barely high enough for humans to breathe
C) tiny, compared to sea level.
51) Chlorine in the stratosphere will turn ozone directly into A) smog. B) oxygen (O2). C) chlorofluorocarbons. D) air. E) nitrogen.
B) oxygen (O2).
52) Together, oxygen and nitrogen comprise what percentage of the atmosphere? A) less than 1% B) less than 10% C) about 25% D) about 75% E) more than 95%
E) more than 95%
53) Which of the following is a major source of nitrogen in the atmosphere? A) meteorite collisions B) photosynthesis C) the breakdown of ozone D) decay of organic matter E) chlorofluorocarbons
D) decay of organic matter
54) The warm zone near the top of the stratosphere is the result of heating from
A) atmospheric pollution.
B) the rise of air.
C) the output of volcanoes.
D) thermal infrared emissions from clouds.
E) the absorption of solar energy
E) the absorption of solar energy.
55) If one were 30 kilometers above sea level, one would be in the part of the atmosphere known as the A) stratosphere. B) troposphere. C) exosphere. D) heterosphere. E) mesosphere.
A) stratosphere.
56) Which of the following is NOT a natural characteristic of the troposphere?
A) contains most of the atmospheric water vapor
B) is the lowest layer of the atmosphere
C) has the highest pressures in the atmosphere
D) has the hottest temperatures in the atmosphere
E) is the layer associated with “weather”
D) has the hottest temperatures in the atmosphere
57) Which is a danger of increased ultraviolet exposure at the Earth’s surface?
A) the killing of microorganisms on the ocean surface
B) the suppression of the human immune system
C) the increase of skin cancer in humans
D) the diminishing of yields in many crops
E) all of the above
E) all of the above
58) The concentration of carbon dioxide in the atmosphere is A) a small fraction of 1%. B) approximately 10%. C) approximately 30%. D) approximately 50%. E) approximately 75%.
A) a small fraction of 1%.
59) Which of the following is NOT a characteristic of air?
A) It is a chemical compound.
B) It is odorless.
C) It is tasteless.
D) It is colorless.
E) It is mostly packed close to the Earth’s surface.
A) It is a chemical compound.
60) Clouds owe their existence to the presence of atmospheric \_\_\_\_\_\_\_\_. A) particulates B) oxygen C) argon D) sunlight E) carbon dioxide
A) particulates
61) The smallest atmospheric particles can remain suspended in the atmosphere for a period of A) seconds. B) minutes. C) hours. D) days. E) years.
E) years.
62) Which of the following is NOT a characteristic of the atmosphere?
A) It contains water vapor.
B) It is poorly mixed in the heterosphere.
C) It is not readily compressed.
D) It is very well mixed near the Earth’s surface.
E) It has clouds which float in it.
C) It is not readily compressed.
63) Which atmospheric layer is directly above the tropopause? A) exosphere B) mesosphere C) troposphere D) stratosphere E) thermosphere
D) stratosphere
64) The stratosphere derives its name from which property?
A) It is the hottest layer of the atmosphere.
B) It is the coldest layer of the atmosphere.
C) It is the layer closest to the ground.
D) It is the layer with the most clouds.
E) It is a layer with little vertical mixing.
E) It is a layer with little vertical mixing.
65) The coldest temperature in the atmosphere can be found at the \_\_\_\_\_\_\_\_. A) tropopause B) exopause C) stratospause D) thermopause E) mesopause
E) mesopause
66) The source of warming in the upper stratosphere is ________.
A) energy absorbed by ozone
B) thermal infrared energy absorbed from the Sun
C) heat released from water vapor
D) increasing amounts of carbon dioxide
E) not yet understood by science
A) energy absorbed by ozone