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9th grade curriculum > Environmental unit 7 > Flashcards

Environmental unit 7 Flashcards

1
Q

Algae blooms are most often caused by _____.

A

eutrophication

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2
Q

Which parameter greatly affects the toxicity level of other parameters?

A

pH

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3
Q

a natural or artificial place to store water

A

reservoir

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4
Q

a region that drains into a certain water body

A

watershed

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5
Q

Approximately _____% of trash in the ocean originally came from land

A

80

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6
Q

Leaking underground storage tanks that contain gasoline is an example of ______.

A

point-source pollution

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7
Q

the process of introducing bacteria and other living organisms that eat oil, helping it break down faster

A

bioremedation

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8
Q

the settling of materials at the bottom of a liquid

A

sedimentation

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9
Q

A(n) _____ aquifer is most easily polluted.

A

unconfined

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10
Q

the lack of clean water or available water resources to meet water usage demands in a region

A

water scarcity

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11
Q

______ is the number-one way people use fresh water.

A

Agriculture

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12
Q

Too much _____ can lead to a decrease in photosynthesis in aquatic life.

A

turbidity

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13
Q

A(n) _____ aquifer is most easily recharged.

A

unconfined

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14
Q

materials that can be broken down by living organisms

A

biodegradable

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15
Q

eutrophication caused by human activities

A

cultural eutrophication

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16
Q

the result of excess nutrients in an aquatic ecosystem, which causes excess plant and algae growth

A

eutrophication

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17
Q

If trees in the _____ are removed, water temperatures can increase in streams.

A

riparian zone

18
Q

Groundwater is a _____ resource.

A

renewable

19
Q

Approximately ______% of oil spills come from human activities.

A

85%

20
Q

Fossil water is a _____ resource.

A

nonrenewable

21
Q

the settling of very small particles such as silt and clay

A

siltation

22
Q

aims to make all surface water from natural sources safe for swimming and fishing

A

Clean Water Act

23
Q

allows the EPA to control toxic waste and sewage dumping in U.S. waters

A

Marine Protection, Research, and Sanctuaries Act

24
Q

centers around protecting both surface water and groundwater from pollution

A

Safe Drinking Water Act

25
Q

supports state and local regions in cleaning polluted runoff

A

Water Quality Act

26
Q

Chemicals added to roads is an example of _____.

A

nonpoint-source pollution

27
Q

the measure of how well water can move through the pores in a substance

A

permeability

28
Q

a measure of how many holes are in a substance

A

porosity

29
Q

water added to aquifers through precipitation

A

recharge

30
Q

an aquifer in which the water infiltrates the ground directly above the aquifer

A

unconfined aquifer

31
Q

The usable fresh water people need is found in ____.

A

watersheds

32
Q

______ is the process of removing salt from ocean water.

A

Desalination

33
Q

A tourist stepping on coral can cause _____.

A

coral bleaching

34
Q

_____ uses the process of diffusion through a membrane to desalinate water.

A

Reverse osmosis

35
Q

underground rocks and formations that are able to hold groundwater

A

aquifer

36
Q

an aquifer with a surface that keeps water from infiltrating, so the water must enter the aquifer at a point farther away

A

unconfined aquifer

37
Q

water trapped in ancient aquifers formed 12,000 years or more ago

A

fossil water

38
Q

water that has infiltrated below the ground

A

groundwater

39
Q

The amount of water it took to grow the wheat in an imported sack of grain is known as _____ water.

A

virtual

40
Q

Soil erosion leads to an increase of _____ pollution in water.

A

suspended solids

9th grade curriculum (4 decks)

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