Lab: Modeling Water Erosion — Unit test Answers

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How long ago do scientists believe the continents formed Pangaea?

a
about 135 million years ago
a
about 180 million years ago
a
about 300 million years ago
a
about 4.5 billion years ago
3

Which features form along all types of plate boundaries?

f
faults
r
rift valleys
m
mountains
o
ocean ridges
4

Which statement describes a disadvantage of using natural gas as an energy source?

A
It is expensive to use.
B
It is hard to stop using.
C
It is a renewable resource.
D
It is scarce in some parts of the world.
5

Study this image of lithospheric plates.

Question illustration
P
Pacific, Eurasian, and African
A
African, North American, and South American
E
Eurasian, African, and South American
N
North American, Pacific, and African
6

Which event is most likely if an index fossil is found in a layer at location 1, but the layer and index fossil are not found at location 2 nearby, which is known to be the same relative age?

A
The layer at location 2 is too old to contain fossils.
B
The locations were too close together.
C
The organism did not exist at location 2.
D
The layers at location 2 formed much earlier than those at location 1.
8

By which process does water vapor become a cloud?

A
evaporation
B
transpiration
C
condensation
D
precipitation
10

Which describes one way that renewable resources differ from nonrenewable resources?

A
Renewable resources make cleaner energy.
B
It takes longer to replenish renewable resources.
C
Renewable resources are more easily located and harvested.
D
Pollution levels increase with the use of renewable resources.
11

Study this image.

Question illustration
A
Oceanic and continental plates are colliding.
B
Oceanic and continental plates are shifting past each other.
C
Two continental plates are forming a large mountain.
D
Two oceanic plates are creating several island chains.
12

Which phrase describes faults?

A
cause gaps in the geologic record
B
cause rocks to break and move
C
are older than surrounding rocks
D
are igneous rocks that form beneath Earth’s surface
14

What would happen to life on Earth if all the liquid fresh water were used up?

A
All organisms would adapt to using salt water.
B
Organisms would carry out life functions without water.
C
Animals would be affected, but some desert plants would survive.
D
Life could no longer exist on Earth.

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