AnswersSC332 Environmental Science BClimate and Change in Ecosystems

Climate and Change in Ecosystems Answers

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1
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Environmental factors can cause various changes in ecosystems. Which of the following would most likely have the greatest lasting effect on an ecosystem?

A
a seasonal excess of fertilizer runoff
B
a disease among a population
C
change to the landscape from construction
D
seasonal drought
2
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How do the benefits of natural change to ecosystems compare to the disadvantages?

A
The benefits are outweighed by the disadvantages.
B
The benefits outweigh the disadvantages.
C
The benefits are equal to the disadvantages.
D
There are no disadvantages to natural change in ecosystems.
3

How could climate change affect the ecosystems of the island nation of Samoa?

A
increased cyclone activity could damage land plants and coral reefs
B
increasing global temperatures could raise ocean levels and temperatures subsequently damaging aquatic environments
C
a and b
D
none of the above
4

Climate warming trends allow plant and insect species to inhabit larger ranges.

A
T
B
F
5

Environmental factors can have various effects on ecosystems. In August 2005, Hurricane Katrina caused significant damage in several states along the Gulf Coast, including Alabama, Mississippi, and Louisiana. Thousands of people were evacuated from their homes due to flooding and other damage caused by the storm. What environmental impact would Hurricane Katrina not have caused?

A
early onset of spring
B
change in marine ecosystems
C
change in animal migration
D
change in habitats
6

Pollution is the only way that humans can cause changes to ecosystems.

A
T
B
F
7

How does an early onset of spring through climate change affect plants?

A
their growing and flowering season starts earlier and is longer
B
their growing and flowering season starts later and is longer
C
their growing and flowering season starts earlier and is shorter
D
their growing and flowering season starts later and is shorter
8

Ecosystems change when _______.

A
living components of an ecosystem change
B
nonliving components of an ecosystem change
C
their stability is disrupted
D
all of the above
9

Due to the increase in global temperatures, the range of plants and insects is increasing. The negative impact is that they now affect the local organisms in the area and are referred to as

Answer not available
10

Habitat change can occur through natural causes.

A
T
B
F

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