AnswersNM-Physical Science AUnit Test

Unit Test — Unit test Answers

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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.
3
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Which statement correctly describes a feature of the rock cycle?

A
Rocks are preserved through the process.
B
Rocks change from one type to another.
C
Different rock groups are not related to one another.
D
The rock cycle follows a specific order.
4

The image shows a diagram explaining a concept.

Question illustration
A
temperature
B
altitude
C
air density
D
air pressure
5

What can happen to solar radiation when it enters Earth’s atmosphere?

A
It is increased as it hits the clouds.
B
It is absorbed or reflected as it travels to Earth’s surface.
C
It is changed into visible light.
D
It is destroyed by the water molecules in the atmosphere.
6

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
7

Which is one step that geologists use to find the epicenter of an earthquake?

A
They look at data from at least one seismograph.
B
They measure the difference between arrival of P waves and S waves.
C
They draw circles around the epicenter from three locations.
D
They obtain information about the intensity of earthquakes from seismographs.
8

In which layer of the Earth does the motion of the convection currents drive plate movement?

A
mantle
B
outer core
C
inner core
D
lithosphere
9

Some consumers, like lions, do not eat plants or any other producers. They only eat other animals.How do lions obtain the carbon they need?

A
by eating animals that have carbon-based molecules stored in their bodies
B
by breathing it in from the atmosphere in the form of carbon dioxide
C
by absorbing carbon-based molecules through their skin from the soil
D
by drinking water that contains carbon dioxide
10

Which plate forms a boundary with the African Plate?

Question illustration
A
Pacific
B
South American
C
Nazca
D
Philippine
11

Rosa drew a flow chart of the carbon cycle.

Question illustration
A
X: Producers undergo photosynthesis.Y: Decomposers return carbon to the soil and release waste.
B
X: Decomposers return carbon to the soil and release waste.Y: Producers undergo photosynthesis.
C
X: Decomposers take in carbon dioxide.Y: Producers absorb carbon through their roots.
D
X: Producers absorb carbon through their roots.Y: Decomposers take in carbon dioxide.
12

Which type of rock is most likely to form because of high heat and pressure?

A
igneous
B
magma
C
sediment
D
metamorphic
13

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.
14

Which is one type of evidence that geologists usually study?

A
location of Earth in outer space
B
waves that move through Earth
C
interactions between living things on Earth
D
diversity of life found on Earth
15

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.
16

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.
17

Which statement describes an important role of carbon dioxide in Earth’s atmosphere?

A
Animals breathe carbon dioxide.
B
Plants use carbon dioxide to make food.
C
Carbon dioxide helps animals make proteins.
D
Carbon dioxide forms clouds that produce rain.
18

Which increases along faults and leads to rock breaking?

A
damage
B
earthquake
C
focus
D
stress
19

Which statement best describes the theory of plate tectonics?

A
Plates sometimes move closer to one another.
B
Sections of Earth that shift are part of Earth’s asthenosphere.
C
Sections of Earth’s continents are in slow, constant movement.
D
Parts of the ocean floor move as they are carried by rift valleys.
20

Study the diagram showing the range of temperature in the Earth’s layers.

Question illustration
A
1,613°C
B
2,521°C
C
3,628°C
D
6,217°C
21

What may occur when convergent boundaries interact?

A
formation of island chains
B
creation of mid-ocean ridges
C
creation of convection currents
D
formation of rift valleys

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