Question 1

How much nitrogen occupies a volume of air near the Earth's surface?

Accepted Answer

A) 78% 
B) 84% 
C) 43% 
D) 21% 
A) 78% 
B) 84% 
C) 43% 
D) 21%

Question 2

Which of the following gases varies the most from place to place and from time to time in the lower atmosphere?

Accepted Answer

A) ozone 
B) water vapour 
C) carbon dioxide 
D) methane 
A) ozone 
B) water vapour 
C) carbon dioxide 
D) methane

Question 3

Why are measurements of global carbon dioxide concentrations relatively higher during the northern hemisphere summer?

Accepted Answer

Measurements of global carbon dioxide (C

Question 4

Why would the Mauna Loa Observatory in Hawaii be considered a good location to monitor global concentrations of carbon dioxide?

Accepted Answer

The Mauna Loa Observatory in Hawaii is c

Question 5

Which of the following is the name for the tiny, solid or liquid, suspended atmospheric particles of various compositions?

Accepted Answer

A) carcinogens 
B) aerosols 
C) greenhouse gases 
D) microbes 
A) carcinogens 
B) aerosols 
C) greenhouse gases 
D) microbes

Question 6

Which of the following is the only substance that is found naturally in the atmosphere near the Earth's surface as a solid, a liquid, and a gas?

Accepted Answer

A) water 
B) carbon dioxide 
C) ozone 
D) molecular oxygen 
A) water 
B) carbon dioxide 
C) ozone 
D) molecular oxygen

Question 7

Which of the following weather elements decreases in relation to an increase in altitude?

Accepted Answer

A) moisture 
B) temperature 
C) pressure 
D) wind 
A) moisture 
B) temperature 
C) pressure 
D) wind

Question 8

Which of the following atmospheric layers is the hottest?

Accepted Answer

A) mesosphere 
B) troposphere 
C) thermosphere 
D) stratosphere 
A) mesosphere 
B) troposphere 
C) thermosphere 
D) stratosphere

Question 9

Which of the following chemicals is the most abundant gas in the mesosphere?

Accepted Answer

A) carbon dioxide 
B) oxygen 
C) ozone 
D) nitrogen 
A) carbon dioxide 
B) oxygen 
C) ozone 
D) nitrogen

Question 10

Which of the following describes the amount of oxygen inhaled in a single breath at the 500 hPa level, compared to that inhaled at sea level?

Accepted Answer

A) The amount is about the same. 
B) The amount is about three-quarters. 
C) The amount is about one-quarter. 
D) The amount is about one-half. 
A) The amount is about the same. 
B) The amount is about three-quarters. 
C) The amount is about one-quarter. 
D) The amount is about one-half.

Question 11

What causes air pressure? Why does air pressure decrease with increasing altitude?

Accepted Answer

The answer of What causes air pressure? Why does air...

Question 12

Which of the following is the greenhouse gas that has increased in concentration, at least partly due to deforestation?

Accepted Answer

A) water vapour 
B) carbon dioxide 
C) ozone 
D) chlorofluorocarbons 
A) water vapour 
B) carbon dioxide 
C) ozone 
D) chlorofluorocarbons

Question 13

Which of the following terms refers to the number or mass of air molecules in a given space or volume?

Accepted Answer

A) pressure 
B) temperature 
C) weight 
D) density 
A) pressure 
B) temperature 
C) weight 
D) density

Question 14

Which of the following statements gives the main reason that night-time radio broadcasts can be sent over long distances?

Accepted Answer

A) Radio waves propagate more efficiently through cooler, high-density air. 
B) Radio stations put out more power at night. 
C) The low D-level region of the ionosphere is weaker at night. 
D) There is less interference because many radio stations do not broadcast at night. 
A) Radio waves propagate more efficiently through cooler, high-density air. 
B) Radio stations put out more power at night. 
C) The low D-level region of the ionosphere is weaker at night. 
D) There is less interference because many radio stations do not broadcast at night.

Question 15

If the air temperature at the Earth's surface (0 metres) is 16°C, what is the approximate air temperature at an altitude of 10,000 metres, assuming an average atmospheric lapse rate of 6.5°C per 1000 metres?

Accepted Answer

The answer of If the air temperature at the Earth's...

Question 16

Typically, what percentage of the air's volume near the Earth's surface is water vapour?

Accepted Answer

A) less than 4% 
B) close to 10% 
C) about 21% 
D) about 78% 
A) less than 4% 
B) close to 10% 
C) about 21% 
D) about 78%

Question 17

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?

Accepted Answer

A) The mass would increase. 
B) The density would increase. 
C) The mass would decrease. 
D) The density would decrease. 
A) The mass would increase. 
B) The density would increase. 
C) The mass would decrease. 
D) The density would decrease.

Question 18

Which of the following describes what happens to a radiosonde balloon as it ascends through the atmosphere?

Accepted Answer

A) It expands. 
B) It contracts at first, than expands. 
C) It contracts. 
D) It maintains a constant pressure. 
A) It expands. 
B) It contracts at first, than expands. 
C) It contracts. 
D) It maintains a constant pressure.

Question 19

Which of the following is the best place to view the aurora on a clear night?

Accepted Answer

A) Nunavut 
B) Prince Edward Island 
C) northern Ontario 
D) southern Alberta 
A) Nunavut 
B) Prince Edward Island 
C) northern Ontario 
D) southern Alberta

Question 20

In which of the following atmospheric layers does a lot of mixing and overturning of air occur?

Accepted Answer

A) stratosphere 
B) troposphere 
C) mesosphere 
D) ionosphere 
A) stratosphere 
B) troposphere 
C) mesosphere 
D) ionosphere

How much nitrogen occupies a volume of air near the Earth's surface?

Which of the following gases varies the most from place to place and from time to time in the lower atmosphere?

Why are measurements of global carbon dioxide concentrations relatively higher during the northern hemisphere summer?

Why would the Mauna Loa Observatory in Hawaii be considered a good location to monitor global concentrations of carbon dioxide?

Which of the following is the name for the tiny, solid or liquid, suspended atmospheric particles of various compositions?

Which of the following is the only substance that is found naturally in the atmosphere near the Earth's surface as a solid, a liquid, and a gas?

Which of the following weather elements decreases in relation to an increase in altitude?

Which of the following atmospheric layers is the hottest?

Which of the following chemicals is the most abundant gas in the mesosphere?

Which of the following describes the amount of oxygen inhaled in a single breath at the 500 hPa level, compared to that inhaled at sea level?

What causes air pressure? Why does air pressure decrease with increasing altitude?

Which of the following is the greenhouse gas that has increased in concentration, at least partly due to deforestation?

Which of the following terms refers to the number or mass of air molecules in a given space or volume?

Which of the following statements gives the main reason that night-time radio broadcasts can be sent over long distances?

If the air temperature at the Earth's surface (0 metres) is 16°C, what is the approximate air temperature at an altitude of 10,000 metres, assuming an average atmospheric lapse rate of 6.5°C per 1000 metres?

Typically, what percentage of the air's volume near the Earth's surface is water vapour?

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?

Which of the following describes what happens to a radiosonde balloon as it ascends through the atmosphere?

Which of the following is the best place to view the aurora on a clear night?

In which of the following atmospheric layers does a lot of mixing and overturning of air occur?

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters

Exam 1: Earth and Its Atmosphere

How much nitrogen occupies a volume of air near the Earth's surface?

Which of the following gases varies the most from place to place and from time to time in the lower atmosphere?

Why are measurements of global carbon dioxide concentrations relatively higher during the northern hemisphere summer?

Why would the Mauna Loa Observatory in Hawaii be considered a good location to monitor global concentrations of carbon dioxide?

Which of the following is the name for the tiny, solid or liquid, suspended atmospheric particles of various compositions?

Which of the following is the only substance that is found naturally in the atmosphere near the Earth's surface as a solid, a liquid, and a gas?

Which of the following weather elements decreases in relation to an increase in altitude?

Which of the following atmospheric layers is the hottest?

Which of the following chemicals is the most abundant gas in the mesosphere?

Which of the following describes the amount of oxygen inhaled in a single breath at the 500 hPa level, compared to that inhaled at sea level?

What causes air pressure? Why does air pressure decrease with increasing altitude?

Which of the following is the greenhouse gas that has increased in concentration, at least partly due to deforestation?

Which of the following terms refers to the number or mass of air molecules in a given space or volume?

Which of the following statements gives the main reason that night-time radio broadcasts can be sent over long distances?

If the air temperature at the Earth's surface (0 metres) is 16°C, what is the approximate air temperature at an altitude of 10,000 metres, assuming an average atmospheric lapse rate of 6.5°C per 1000 metres?

Typically, what percentage of the air's volume near the Earth's surface is water vapour?

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?

Which of the following describes what happens to a radiosonde balloon as it ascends through the atmosphere?

Which of the following is the best place to view the aurora on a clear night?

In which of the following atmospheric layers does a lot of mixing and overturning of air occur?

Energy: Warming Earth and the Atmosphere

Seasonal and Daily Temperatures

Atmospheric Humidity

Condensation: Dew, Fog, and Clouds

Stability and Cloud Development

Precipitation

Air Pressure and Winds

Wind: Small-Scale and Local Systems

Wind: Global Systems

Air Masses and Fronts

Middle-Latitude Cyclones

Weather Forecasting

Thunderstorms

Tornadoes

Hurricanes

Earths Changing Climate

Global Climate

Air Pollution

Filters