AnswersOH-Environmental Science CRUnit Test

Unit Test — Unit test Answers

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1
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Artificial erosion does not impact the environment any more than natural erosion does.

A
T
B
F
2
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Which of the following is a long-term consequence of mining on the Earth?

A
erosion
B
an open pit
C
sedimentation
D
all of the above
3

What is true of both earthquakes and volcanoes?

A
They are caused by movement of tectonic plates.
B
They are potentially devastating to local environments.
C
They occur inland less frequently than along coasts.
D
All of the above are true of both earthquakes and volcanoes.
4

Which of the following statements about horizons is true?

A
They are characterized by whether they are solid, liquid, or gas.
B
They are represented by Roman numerals.
C
All soils have completely different horizon patterns.
D
They are defined by their different physical features.
5

Which of the following is a way that minerals are used?

A
industry
B
construction
C
technology
D
all of the above
6

Permafrost (gelisol) is considered a hearty, robust soil type.

A
T
B
F
7

Which of the following factors does not affect soil formation?

A
precipitation
B
time
C
erosion
D
none of the above
8

How is over-irrigation damaging to soil?

A
It reduces the amount of organic material in soil.
B
It results in the accumulation of salt near the soil surface.
C
It increases the acidity of soil.
D
It removes water from the water table.
9

A _______ is formed when tectonic plates collide.

A
rift
B
subduction zone
C
fault
D
all of the above
10

Which of the following is a result of natural erosion?

A
desert sands
B
lost seed germination
C
widened valleys
D
all of the above
11

Soil fertility is best described as being dependent upon _______.

A
the balance between organic matter and mineral nutrients
B
soil color and the local climate
C
topography and the local climate
D
soil texture
12

The movement of continents has affected weather patterns by _______.

A
separating the continents
B
creating mountain ranges
C
changing the location of the continents
D
all of the above
13

Which of the following is an example of chemical weathering?

A
waves washing over rocks on the beach
B
acid rain falling on sidewalks
C
ice forming in the cracks of rocks
D
wind blowing against rocks
14

Weathering and erosion both contribute to the disintegration of rocks.

A
T
B
F
15

How does mining affect local populations?

A
Mining is a vital part of the economy of surrounding towns.
B
Mining introduces pollution into local water supplies.
C
Mining disrupts local populations of flora and fauna.
D
All of the above are true.
16

Surface mining is more ecologically damaging than subsurface mining.

A
T
B
F
17

The presence of organic material in soil makes it more productive for plant growth.

A
T
B
F
18

Volcanic eruptions that occur as a result of continental shifting are typically found where

A
the crust is thickened and the tectonic plates converge.
B
the crust is thinned and the tectonic plates diverge.
C
the crust diverges and the tectonic plates submerge.
D
the crust emerges and the tectonic plates converge.
19

Which of the following readings is used to determine the availability of minerals?

A
radioactivity
B
magnetism
C
gravity
D
all of the above
20

Why is artificial erosion a concern if erosion can occur naturally?

A
Artificial erosion changes environments while natural erosion does not.
B
Artificial erosion occurs at a faster rate than natural erosion.
C
Artificial erosion affects soil while natural erosion does not.
D
Artificial erosion is of no concern.

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