AnswersEarth and Space Science Sem 2Unit Test

Unit Test — Unit test Answers

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1
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Which is an example of convection currents?

A
marshmallows toasting over a campfire
B
a pot being heated by an electric burner
C
feet getting hot when stepping across sand
D
a radiator emitting warm air and drawing in cool air
2
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Which technology collects data for weather, climate, and environmental monitoring from space?

A
radar
B
satellites
C
weather stations
D
weather balloons
3

Which lists the layers of the atmosphere from Earth's surface outward?

A
troposphere, stratosphere, mesosphere, thermosphere
B
troposphere, mesosphere, stratosphere, thermosphere
C
thermosphere, stratosphere, mesosphere, troposphere
D
stratosphere, troposphere, mesosphere, thermosphere
4

Which refers to solid ice that condenses and forms on surfaces like grass or windows?

A
dew
B
frost
C
hail
D
sleet
5

The image below shows a weather service map.

Question illustration
A
shows isolines and isobars
B
shows types of precipitation
C
was created for newspapers
D
is probably not used to make forecasts
6

Look at the diagram showing the different wavelengths in sunlight.

Question illustration
A
They take the form of heat.
B
They can cause skin cancer and sunburn.
C
They are some of the shortest waves.
D
They can be seen by human eyes as visible light.
7

Which phrase describes air pressure?

A
decreases with denser air
B
decreases as altitude decreases
C
equals mass divided by volume
D
decreases as a result of fewer air particles pushing down
8

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.
9

Which description refers to fog?

A
burns off when it gets dark
B
extends up to 10 miles into the sky
C
is found in areas near bodies of water
D
forms when the ground warms at night after a cool, dry day
10

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
11

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
12

What path do global winds follow due to the Coriolis effect?

A
a curved path
B
a random path
C
a straight path
D
a vertical path
13

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.
14

Which blow from west to east, following the boundary between hot and cold air?

A
trade winds
B
sea breezes
C
jet stream
D
polar easterlies
15

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.
16

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.
17

Study the diagram.What is forming in the diagram?

Question illustration
A
a front
B
a hurricane
C
a thunderstorm
D
a tornado
18

Study the image.

Question illustration
A
Cool air is above water.
B
Warm air is above land.
C
Warm air is cooling quickly.
D
Cool air is warming quickly.
19

Which is one factor that adds to the greenhouse effect?

A
a decrease in the amount of dust in the atmosphere
B
a decrease in the amount of water on Earth’s surface
C
an increase in gases in the atmosphere that absorb heat
D
an increase in the amount of solar radiation that reflects into space
20

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.

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