Streams and Rivers Answers

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1
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Which of the following is a way that humans impact rivers and streams?

A
pollution
B
dams
C
flooding
D
all of the above
2
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Rooted aquatic plants can be found in areas with lower sunlight exposure.

A
T
B
F
3

Sewage is the most common form of pollution in rivers and streams.

A
T
B
F
4

Dams have a limited effect on rivers and streams.

A
T
B
F
5

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.
6

What characteristic sets streams and rivers apart?

A
water quality
B
direction of flow
C
size
D
biodiversity
7

Streams have a detectable current, while rivers do not.

A
T
B
F
8

Currents shape rivers over long periods of time.

A
T
B
F
9

The organisms found in rivers and streams vary based on location.

A
T
B
F
10

Where is oxygen content in a river or stream likely to be highest?

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

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