Streams and Rivers Answers

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22
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How does current affect biodiversity in rivers and streams?

A
It prevents bacteria and algae from living in rivers and streams.
B
It causes a decrease in biodiversity by preventing organisms from remaining in rivers and streams.
C
It mixes the nutrients for plant and animal use and determines location of organisms.
D
It has no affect on biodiversity.
23

Which area of rivers and streams will most likely contain the most sediment?

A
the source
B
the mouth
C
the middle portion
D
none of the above
24

Rooted aquatic plants can be found in areas with lower sunlight exposure.

A
T
B
F
26

How does access to sunlight affect the biodiversity of a river ecosystem?

A
Sediment is limited in areas with little access to sunlight.
B
Plant and animal life is limited in areas with little access to sunlight.
C
Algae is more common in areas with less access to sunlight.
D
Biodiversity is unaffected by access to sunlight.
27

What characteristic sets streams and rivers apart?

A
water quality
B
direction of flow
C
size
D
biodiversity
28

Currents shape rivers over long periods of time.

A
T
B
F
29

Which area of rivers and streams will most likely contain the most sediment?

A
the source
B
the mouth
C
the middle portion
D
none of the above
30

Dams have a limited effect on rivers and streams.

A
T
B
F

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Streams and Rivers Answers — IC Sem B…