1.

In a volume of air near the earth's surface, ________ occupies 78 percent and ________ nearly 21 percent.

Student Response Value1 oxygen, hydrogen2 hydrogen, helium3 nitrogen, water vapor4 hydrogen, oxygen

nitrogen, oxygen 100%

Score: 1-Jan

2

The only substance near the earth's surface that is found naturally in the atmosphere as a solid, liquid, and a gas is:

Student Response Value1 ozone.2 carbon.

water. 100%4 molecular oxygen.5 carbon dioxide.

Score: 1-Jan

3

The most abundant greenhouse gas in the earth's atmosphere is:

Student Response Value100%

2 chlorofluorocarbons (CFCs).345

Score: 1-Jan

4

Student Response Value1 been decreasing in concentration.2 remained at about the same concentration from year to year.

been increasing in concentration. 100%4 disappeared entirely.

Score: 1-Jan

5.

3.

1. water vapor (H2O).

nitrous oxide (N2O).methane (CH4).carbon dioxide (CO2).

Since the turn of this century, CO2 in the atmosphere has:

3.

5

Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such altitudes, the Tibetans are above roughly:

Student Response Value

50% of the air molecules in the atmosphere. 100%2 25% of the air molecules in the atmosphere.3 75% of the air molecules in the atmosphere.4 10% of the air molecules in the atmosphere.

Score: 1-Jan

6

upward in the atmosphere?

Student Response Value1 wind

pressure 100%3 all of these choices4 moisture5 temperature

Score: 1-Jan

7

The earth's atmosphere is divided into layers based on the vertical profile of:

Student Response Value

air temperature. 100%2 wind speed.3 air pressure.4 air density.

Score: 1-Jan

8

Almost all of the earth's weather occurs in the:

Student Response Value

troposphere. 100%2 stratosphere.3 exosphere.4 mesosphere.5 thermosphere.

Score: 1-Jan

1.

Which of the following weather elements always decreases as we climb

2.

1.

1.

9

The atmospheric layer in which we live is called the:

Student Response Value1 stratosphere.2 thermosphere.3 exosphere.

troposphere. 100%5 ionosphere.

Score: 1-Jan

10

The gas that absorbs most of the harmful ultraviolet radiation in the stratosphere is:

Student Response Value1 carbon dioxide.

ozone. 100%3 water vapor.4 chlorofluorocarbons.5 nitrous oxide.

Score: 1-Jan

11

The word "weather" is defined as:

Student Response Value

the condition of the atmosphere at a particular time and place. 100%2 any type of falling precipitation.3 the climate of a region.4 the average of the weather elements.

Score: 1-Jan

12

At night, when the weather is extremely cold and dry:

Student Response Value1 atmospheric pressure increases with increasing altitude.

atmospheric pressure decreases with increasing altitude. 100%3 atmospheric pressure remains constant with increasing altitude.4 atmospheric pressure first increases, then decreases with increasing altitude.

Score: 1-Jan

13

4.

2.

1.

2.

Student Response Value1 a warm front2 low pressure area

high pressure area 100%4 a cold front

Score: 1-Jan

14

Which relates to weather rather than climate?

Student Response Value1 the foggiest month of the year is December2

outside it is cloudy and snowing 100%45 I like the warm, humid summers

Score: 1-Jan

15

At the 500 mb level, the amount of oxygen inhaled in a single breath is ________ of that inhaled at sea-level.

Student Response Value1 about the same

about one-half 100%3 about three-quarters4 about one-quarter

Score: 1-Jan

16

Student Response Value1 one-fifth

five times 100%3 half4 three times5 twice

Score: 1-Jan

Which of the following is most likely associated with fair weather?

3.

the lowest temperature ever recorded in Frozenlake, Minnesota is -57 oF 3.

the average temperature for the month of January is 28 oF

2.

Referring to Table 1.3: If you were to take a breath of pure oxygen, from a tank, you'd be getting about ________ the amount of oxygen you'd get by taking a normal breath of our atmosphere.

2.

17

Stratospheric ozone is a health hazard for people with respiratory illnesses.

Student Response Value1 TRUE

0 100%

Score: 1-Jan

18

The ozone hole is an actual hole in the atmosphere, a region of complete vacuum.

Student Response Value1 TRUE

0 100%

Score: 1-Jan

19

Standing at the top of a tall mountain, a breath of air would contain a lot fewer molecules than a breath of air taken at sea level, but the proportion of oxygen in the two breaths of air, relative to the other constituents, would remain the same.

Student Response Value1 FALSE

1 100%

Score: 1-Jan

20

Referring to Figure 1.12: There is a lot of mixing and overturning of air in the mesosphere.

Student Response Value0 100%

2 TRUE

Score: 1-Jan

21

Heat waves are generally considered to be little more than a nuisance and are not responsible for considerable loss of life.

Student Response Value1 TRUE

0 100%

Score: 1-Jan

2.

2.

2.

1.

2.

22

Turbulent wind shear zones and downbursts are hazards caused by thunderstorms.

Student Response Value1 100%

2 FALSE

Score: 1-Jan

23

Calm, tranquil weather is sometimes extremely hazardous.

Student Response Value1 100%

2 FALSE

Score: 1-Jan

24

Hurricanes inflict most of their damage after crossing from the ocean onto the land.

Student Response Value1 100%

2 FALSE

Score: 1-Jan

25

Hurricane winds are generally stronger than tornado winds.

Student Response Value0 100%

2 TRUE

Score: 1-Jan

1.

1.

1.

1.