The Water We Use Answers

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1
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Which of the following is an effect of fossil fuel emission on oceans?

A
decreased pH
B
decreased carbonate concentrations
C
increased CO2 absorption
D
all of the above
2
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The majority of the debris found in the garbage patch is _______.

A
large plastic bottles
B
sewage
C
trash from landfills
D
small pieces of plastic
3

Recreational activities can cause an increase in erosion rates.

A
T
B
F
4

Reducing access to waterways will lead to an increase in human impact on waterways.

A
T
B
F
5

Which of the following is a source of water pollution?

A
sewage
B
oil spills
C
fertilizers
D
all of the above
6

Increased awareness of water contamination can help reduce its effects.

A
T
B
F
7

Flooding on rivers is caused by human activity rather than natural events.

A
T
B
F
8

How is thermohaline circulation influenced by salinity and temperature?

A
It is driven by density gradients, which are affected by salinity and temperature, with cold water and water with higher salt concentrations being more dense.
B
It is driven by density gradients, which are affected by salinity and temperature, with warm water and water with higher salt concentrations being more dense.
C
It is driven by density gradients, which are affected by salinity and temperature, with warm water and water with lower salt concentrations being more dense.
D
It is driven by density gradients, which are affected by salinity and temperature, with cold water and water with lower salt concentrations being more dense.
9

Which of the following practices could help reduce erosion of water banks?

A
buffer strips
B
natural fertilizers and pesticides
C
decrease in fossil fuel emissions
D
all of the above
10

How does flooding affect rivers?

A
It causes river bends to be cut off.
B
It picks up deposits from floodplains.
C
It causes rivers to divert.
D
It causes river channels to change shape.

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