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physical science > chapter 27.3 > Flashcards

chapter 27.3 Flashcards

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Biology 101 flashcards
1
Q

what percentage of water on Earth is salt water?

A

97%

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2
Q

what percentage of water on Earth is freshwater?

A

3%

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3
Q

where is the majority of freshwater found?

A

2% of 3% glaciers

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4
Q

where is the smaller percentage of freshwater found?

A

lakes
rivers
ground water

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5
Q

what is precipitation?

A 
when water vapor in the air cools and condenses
rain 
snow
sleet
hail
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6
Q

what is runoff?

A

water running off the land surface

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7
Q

what is inflitration?

A

the process by which water enters earth and becomes groundwater below the surface

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8
Q

what is transpiration?

A

when plants release water vapor into the atmosphere through their leaves

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9
Q

what is evaporation?

A

when water enters the atmosphere as water vapor

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10
Q

what is condensation?

A

when water vapor collides with other water vapor molecules to form water droplets

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11
Q

what is the water cycle?

A

water on the land that goes into the atmosphere then eventually returns bacj to the land

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12
Q

what is an unsaturated zone for groundwater storage?

A

porous area where water easily passes through

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13
Q

what is a saturated zone for groundwater storage?

A

beneath the unsaturated zone where water competely fills the pore space

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14
Q

what is a water table?

A

the upper boundary of the saturated zone

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15
Q

what does it mean if sediment is permeable?

A

more permable sediment is the easier water passes through

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16
Q

what is an aquifer?

A

a rock unit that can transfer water through its pore space

17
Q

what is the name of the Great Plains Aquifer?

A

Ogallala Aquifer

18
Q

how many states does the Great Plains Aquifer run through?

A

8 states

19
Q

what are the names of the states that the Great Plains Aquifer runs through

A 
South Dakota 
Wyoming
Nebraska 
Colorado 
Kansas 
Oklahoma 
New Mexico 
Texas
20
Q

what is an aquitard?

A

keep water confined

21
Q

how are water springs formed?

A

where the water table naturally meets Earth’s surface

22
Q

what is an artesian well?

A

wells drilled into pressured aquifers

23
Q

what is a cone of depression?

A

water flows is directed down

physical science (16 decks)

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