AnswersKY-Earth Space Science BUnit Test

Unit Test — Unit test Answers

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1
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Which important indoor safety measure should be taken during a thunderstorm?

A
Lie on the floor.
B
Cover your head.
C
Go to the basement.
D
Move away from windows.
2
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Why does a coastal area have less variation in temperature than a noncoastal area?

A
Temperatures feel cool all year round due to the duration of daylight.
B
Temperatures change from warm to cool depending on the season.
C
The temperatures on land change more rapidly than temperatures on water.
D
The air is warm because warm water moves from the equator to the poles.
3

Which factors are causes of short-term climate change?

A
changes in wind and ocean currents
B
an increase of thunderstorms and rain
C
changes in daily wind shifts and snowfall
D
an increase of hurricanes and volcanic eruptions
4

Which substance is a greenhouse gas that is emitted by human activities, is the most widespread, and remains in the air the longest?

A
water vapor
B
methane
C
fluorinated gas
D
carbon dioxide
5

During the entire month of June, temperatures increase in the Northern Hemisphere and decrease in the Southern Hemisphere.What causes these temperature changes?

A
The Sun reaches its lowest point in the sky.
B
The Sun reaches its highest point in the sky.
C
The north end of Earth’s axis is tilted toward the Sun.
D
The south end of Earth’s axis is tilted toward the Sun.
6

During thunderstorm formation, a lot of energy builds up in cumulonimbus clouds because some processes that help form the cloud and that occur within the cloud give off energy.What process helps build up energy in cumulonimbus clouds?

A
Water droplets freeze in the cumulonimbus clouds.
B
Warm air sinks as the cumulonimbus clouds form.
C
Warm, moist air mass collides with a cold, dry air mass.
D
Ice crystals in the upper atmosphere melt.
7

Study the image.Which air mass has formed immediately north of Antarctica in the image?Study the image.

Question illustration
A
maritime polar
B
continental polar
C
maritime tropical
D
continental tropical
8

What statement is accurate based on the study of tree rings?

A
Trees near the arctic will have thicker rings than those near the equator.
B
Trees with a pattern of thin rings indicate a wet, warm climate.
C
Size and density of tree rings can give information on past climates.
D
The number of rings indicate how much fruit the tree can bear.
9

Which substance may lower air temperatures after a volcanic eruption?

A
lava
B
sulfur dioxide
C
carbon dioxide
D
water vapor
10

How is cold front formation different from stationary front formation?

A
Stationary fronts form between warm and cold air masses, while cold fronts form when a cold air mass advances against a warm air mass.
B
Cold fronts form between two air masses that barely move, while stationary fronts form when a warm air mass is trapped between two cold air masses.
C
Cold fronts form when a warm air mass moves over a cold air mass, while stationary air fronts form when a cold air mass moves over a warm air mass.
D
Stationary fronts form when a warm air mass is trapped between two cold air masses, while cold fronts form when a warm air mass moves over a cold air mass.
11

Which feature do highland climates have that lower elevation areas do not?

A
a tundra where there are no trees
B
a treeline beyond which trees do not grow
C
permafrost, or a part of the ground that is permanently frozen
D
an ice cap, or a permanent cover of ice and snow
12

Which climate has subclimates with humid summers as well as subclimates with long, bitterly cold winters?

A
polar
B
tropical rainy
C
temperate marine
D
temperate continental
13

What occurs when the Northern Hemisphere experiences spring and the Southern Hemisphere experiences fall?

A
The Sun is directly overhead in the Northern Hemisphere.
B
The Southern Hemisphere receives more direct rays from the Sun.
C
The Northern and Southern Hemispheres get the same amount of energy from the Sun.
D
The Northern Hemisphere receives more daylight hours than the Southern Hemisphere.
14

What happens when volcanoes release greenhouse gases into the atmosphere?

A
The climate gets warmer.
B
The climate gets cooler.
C
Winter becomes longer.
D
Summer becomes longer.
15

What are the characteristics of continental tropical air masses?

A
They have cool, dry air.
B
They have warm, dry air.
C
They have cool, moist air.
D
They have warm, moist air.
16

How do scientists use ice to study ancient climates?

A
through glacial deposits and ice cores
B
through glacial deposits and ice ages
C
through ice cores and Earth’s ellipse
D
through Earth’s ellipse and ice ages
17

What happens to jet streams as they get closer to the equator?

A
They blow faster.
B
They do not change.
C
They dissolve.
D
They blow slower.
18

Which statement describes the impact of ocean currents on climate?

A
Ocean currents create changes in the temperature of air over land masses.
B
Ocean currents cause the temperature of air over large bodies of water to change.
C
Ocean currents move cold water from the equator to the poles, creating cool weather regions.
D
Ocean currents carry warm water from the poles to the equator to create warm weather regions.
19

How does La Niña affect the climate of the Pacific Ocean?

A
The ocean becomes cooler.
B
The warm water moves toward the east.
C
The cold water sinks deeper into the ocean.
D
The strength of the prevailing winds decreases.
20

Which weather event is typically brief, contains very strong winds, and leaves a path of destruction up to 50 miles long?

A
a cyclone
B
a hurricane
C
a thunderstorm
D
a tornado

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