AnswersSC332 Environmental Science BClimate and Change in Ecosystems

Climate and Change in Ecosystems — Cumulative exam Answers

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1
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Matter is moved through the Earth by the interaction of Earth’s systems.

A
T
B
F
2
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Biological pest control methods supplement but cannot replace chemical pest control methods.

A
T
B
F
3

Which of the following statements about the tundra is not true?

A
Tundra means “treeless land.”
B
Plants and animals in the tundra have adapted to the extreme climate.
C
Temperatures in the tundra range from extreme highs to extreme lows.
D
The alpine tundra can be found on mountaintops.
4

The Clean Air Act would be a reason for the Environmental Protection Agency (EPA) to regulate car emissions.

A
T
B
F
5

Which of the following statements about biodiversity is true?

A
Changes to biodiversity always positively affect an ecosystem.
B
Changes to biodiversity always negatively affect an ecosystem.
C
Changes to biodiversity can positively and negatively affect an ecosystem.
D
Changes to biodiversity never affect an ecosystem.
6

All animals are _______.

A
producers
B
omnivores
C
herbivores
D
consumers
7

A plant native to the chaparral would be expected to _______.

A
require frequent rainfall
B
tolerate nutrient-poor soil
C
have large, soft leaves
D
be tall with large branches
8

Wind, solar and geothermal power are called renewable energy sources because _______.

A
tax breaks for these sources are renewed every year
B
they are continuously replenished
C
humans can replenish these sources periodically
D
they produce few toxic byproducts
9

Which of the following is not a benefit to using scientific models?

A
Scientific models help scientists gain a better understanding of concepts and events.
B
Scientific models aid in communication about concepts and events.
C
Scientific models are never subject to change.
D
Scientific models can help answer scientific questions.
10

What happens to water in the atmosphere as it rises?

A
It evaporates.
B
It condenses and forms clouds.
C
It combines with other gases in the air.
D
It is used up.
11

How can an increase in biodiversity lead to an increase in ecosystem stability?

A
A more biodiverse ecosystem is not subject to change.
B
A more biodiverse ecosystem has a higher chance of adapting to species changes.
C
A more biodiverse ecosystem has fewer species types to balance.
D
A more biodiverse ecosystem is subject to fewer natural disasters.
12

Walking among the top canopy in a tropical rainforest requires _______.

A
bridges suspended almost 100 feet off the ground
B
bridges suspended almost 60 feet off the ground
C
bridges suspended almost 20 feet off the ground
D
no special conditions
13

Human impact on one system leads to changes in more of Earth’s systems.

A
T
B
F
14

Which of the following scenarios represents change to an ecosystem brought about by biotic factors?

A
a wildfire caused by lightning striking a tree
B
a flood caused by a severe storm
C
a landslide caused by cattle overgrazing
D
a volcano
15

Pollution in the _______ will have the greatest effect on human health.

A
troposphere
B
stratosphere
C
mesosphere
D
thermosphere
16

Which of the following is not a negative consequence of upward urban growth?

A
pollution
B
creation of a “heat island”
C
increased use of surrounding land
D
waste management issues
17

Fish do not live in the icy rivers of the tundra.

A
T
B
F
18

Which of the following is true of deciduous forests?

A
characterized by four seasons
B
trees maintain their leaves year round
C
precipitation is concentrated in one season
D
averages 5-10 inches of precipitation annually
19

In which region would you find the lowest concentration of public land in the United States?

A
the Pacific Northwest
B
the West coast
C
New England
D
the Midwest
20

The increase in the population of people living in urban areas will cause a decrease in urban sprawl.

A
T
B
F

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