AnswersAZ-Earth and Space Science BUnit Test

Unit Test — Cumulative exam Answers

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1
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Which statement best describes a characteristic of maritime polar air masses?

A
They occur mostly during the summer.
B
They form over water with cool, moist air.
C
They bring dense, heavy snow in the winter.
D
They have cool, dry air that forms over land.
2
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Which type of wetland includes a mixture of salt water and fresh water?

A
bogs
B
swamps
C
inland marshes
D
coastal wetlands
3

The image shows a cross section of a landscape and a well.

Question illustration
A
1
B
2
C
3
D
4
4

Which statement provides the complete explanation of how renewable and nonrenewable resources differ?

A
They differ in the amount they are found in nature.
B
They differ in the rate they are replaced.
C
They differ in the available amount and rate they are used and replaced.
D
They differ in the rate they are used.
5

What happens when the Sun emits more energy than normal?

A
Solar flares and sunspots occur, increasing Earth’s temperature.
B
Sunspots and volcanic eruptions occur, increasing Earth’s temperature.
C
Volcanic eruptions and movement of continents occur, decreasing Earth’s temperature.
D
Movement of continents and solar flares occurs, decreasing Earth’s temperature.
6

Why is the Continental Divide important?

A
It forms two river systems.
B
It combines two large ice sheets.
C
It separates two major watersheds.
D
It splits two large rivers through tributaries.
7

How do rock types contribute to the rate of weathering?

A
Porous minerals weather faster.
B
Harder minerals break apart more easily.
C
Minerals that dissolve easily weather slower.
D
Permeable rocks have less chemical reactions.
8

Which factor increases as a result of increasing altitude?

A
air pressure
B
air density
C
size of gas molecules
D
space between gas molecules
9

The image shows isotherms on a map.What temperature pattern do the isotherms show?

Question illustration
A
Temperatures increase from south to north.
B
There is a zone of low temperatures in the Southwest.
C
There is a zone of high temperatures in the center of the country.
D
Temperatures increase from the center of the country toward the Southeast.
10

Meteorology is the study of

A
radar.
B
meteors.
C
Earth’s satellites.
D
Earth’s atmosphere.
11

Which term describes weathering?

A
breaks down rock
B
causes heating and cooling
C
makes pebbles and rocks larger
D
carries away fragments
12

How does coal differ from pine trees as a source of energy?

A
Coal can be replaced easily, while pine trees are difficult to replace.
B
Coal is a nonrenewable resource, while pine trees are a renewable resource.
C
Coal is a clean source of energy, while pine trees cause environmental damage.
D
Coal is an expensive source of energy, while pine trees are an inexpensive source of energy.
13

Which is an example of a local wind?

A
a windchill
B
a jet stream
C
a trade wind
D
a sea breeze
14

Study these images.

Question illustration
A
1
B
2
C
3
D
4
15

Which is one factor that contributes to the formation of polar, temperate, and tropical zones?

A
the angle of the Sun’s rays
B
the direction of seasonal winds
C
the presence of prevailing winds
D
the movement of wind near a mountain
16

Which process is a source of outdoor air pollution?

A
releasing mold particles from an air conditioning vent
B
emitting particles from a dump truck
C
releasing radon gas from a generator
D
emitting carbon monoxide from a heater
17

Which two layers are part of the thermosphere?

A
exosphere and ionosphere
B
ionosphere and mesosphere
C
mesosphere and stratosphere
D
stratosphere and troposphere
18

When does the Northern Hemisphere receive the fewest hours of daylight?

A
during the fall equinox
B
during the winter solstice
C
during the spring equinox
D
during the summer solstice
19

How can the process of climate change best be described?

A
artificial and sporadic
B
dangerous and quick
C
natural and continuous
D
unnatural and short-term
20

Which is most likely a source of air pollution?

A
littering
B
CFCs
C
oil spill
D
runoff

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