AnswersEnvironmental Science AMeasuring Populations

Measuring Populations — Unit test Answers

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54
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Changes to _______ can be ascribed to glacial melting.

A
Earth’s surface
B
CO2 levels
C
coral reefs
D
water pollution
55
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Sedimentation accumulation found in bodies of water can be the result of _______.

A
fertilizer runoff
B
pesticides and herbicides
C
erosion from agricultural practices
D
all of the above
56

Which of the following represents a way that animals in a zoo are influenced by their environment?

A
increased natural instincts
B
decreased aggression
C
unnatural behavior
D
increased appetite
57

How is renewable fuel use expected to change in the next decade?

A
It is expected to decrease.
B
It is expected to increase.
C
It is expected to fluctuate.
D
It is expected to remain the same.
58

Which of the following is a way that human modification of limiting factors causes unbalance in ecosystems?

A
habitat loss
B
pollution
C
climate changes
D
all of the above
59

Which of the following is not a factor that impacts the stability of a society?

A
population size
B
resource availability
C
management practices
D
available money
60

Fertilizer in waterways can lead to an increase in _______.

A
nitrogen
B
phosphorus
C
algae
D
all of the above
61

The decreased use of _______ can help lead to sustainable agriculture.

A
conservation tillage practices
B
pesticides
C
biomass energy
D
all of the above
62

Polluted water can contribute to _______.

A
drought
B
increased CO2
C
deforestation
D
glacial melting
63

Explain how famine, disease, and war are more likely with larger populations.

Answer not available
64

By the year 2050, the world’s population is projected to be _______.

A
3 billion
B
5 billion
C
7 billion
D
9 billion
65

The Great Pacific Garbage Patch is an area in the North Pacific Ocean that contains trash and causes harm to ocean life and those that consume that life. What lessons can be learned from this floating pile of trash?

A
There is no relationship between our daily activities and the environment.
B
There are more polluters in the Pacific Ocean than in the Atlantic Ocean.
C
There are areas of the ocean to avoid with boats.
D
There is a relationship among all living things on Earth.
66

Natural resources are classified as renewable and nonrenewable. What is the difference between the two?

A
whether or not the resource exists in nature
B
whether or not the resource can be replaced
C
whether or not the resource dwindles in supply
D
whether or not the resource is useful to humans
67

Explain the reciprocal relationship between human society and limiting factors.

Answer not available

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