Cumulative Exam — Cumulative exam Answers

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41
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The greenhouse effect _______.

A
is essential for life on Earth
B
warms Earth’s atmosphere
C
is a natural phenomenon
D
all of the above
42
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Which of the following is not a part of Earth’s system?

A
hydrosphere
B
geosphere
C
biosphere
D
chronosphere
43

Which of the following is not a reason that cane toads became an invasive species in Australia?

A
They are poisonous to most animals.
B
They are voracious predators.
C
They have almost no natural predators.
D
They are not well adapted to the Australian climate.
44

Which of the following best explains how human activities can directly contribute to landslides?

A
Removing plants from hillsides eliminates the root structures that anchor soil.
B
Clearing trees from hills increases the frequency of rainstorms.
C
Human activities tend to reduce the risk of fires.
D
Landslides are not impacted by human activities.
45

Which of the following is(are) true concerning the 2004 tsunami in Indonesia?

A
It had minimal human casualties.
B
The tsunami waves were as high as 500 feet.
C
It was triggered by magnitude 9.1 earthquake.
D
All of the above
46

Tsunamis are the result of _______.

A
undersea volcanic eruptions
B
undersea earthquakes
C
hurricanes
D
all of the above
47

If predators A and B prey upon the same species and predator A is eliminated, the population of predator B will likely __________.

A
be eliminated
B
increase
C
decrease
D
remain the same
48

Which type of information is best represented by a chart?

A
the sequence of chemical reactions in photosynthesis
B
the percentage composition of gases in car exhaust
C
the rate of carbon dioxide production during exercise
D
the numbers of male and female fish in a lake
49

The cracking of rock due to heat is an example of _______.

A
erosion
B
physical weathering
C
chemical weathering
D
none of the above
50

The temperature stability of earth’s atmosphere is mostly due to _______.

A
the seasonal changes in day length
B
the rotation of earth about its axis
C
plant respiration
D
water in the oceans acting as a thermoregulator
51

An understanding of how human activity affects the environment is important for environmental policy makers.

A
T
B
F
52

Which of the following is an example of physical weathering?

A
ice forming in cracks of rocks
B
acid rain falling on sidewalks
C
waves washing over rocks on the beach
D
water washing away soil in an area used by off-road vehicles
53

Decomposers such as fungi break down the nutrients in dead plant and animal matter for use by _______.

A
producers
B
primary consumers
C
secondary consumers
D
tertiary consumers
54

What pattern of material movement found in the Earth system tracks how an element moves from living to nonliving parts?

A
rock cycle
B
calcium cycle
C
carbon cycle
D
none of the above
57

Which of the following is a negative consequence of scientific advancements on society?

A
increased life expectancy
B
increased pollution
C
new energy resources
D
all of the above

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