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Science quiz Flashcards

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Biology 101 flashcards
1
Q

Earth saltwater

A

97

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2
Q

Earth Fresh Water

A

3

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3
Q

Why are the oceans salty?

A

volcanos and rocks

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4
Q

Salinity: What is it?

A

amount of salt dissolved in body of water

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5
Q

Thermocline

A

how fast water decreases in temperature

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6
Q

Upwelling

A

deep cold water goes upward after a storm

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7
Q

Deep currents (caused by?)

A

surface wind and density surface winds cool at poles and sink (density difference)

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8
Q

Gyre

A

huge circles of moving water

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9
Q

Glaciers

A

large moving mass of ice and snow

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10
Q

An area of land that drains water into a specific waterbody?

A

Watershed

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11
Q

A river or stream flowing into a larger river

A

Tributary

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12
Q

The boundary for a watershed

A

Divide

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13
Q

If precipitation is greater then there is

A

excess of water

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14
Q

Gravel has a low porosity

A

False

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15
Q

Fine sand has a lower permability

A

True

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16
Q

WHat material would make best aquifer

A

Gravel

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17
Q

Porosity refers to…

A

the spaces in material

18
Q

colder more dense

A
19
Q

An unconfined aquifer is found underwhat type of material

A

Permeable

20
Q

COnfined aquifers recharge quickly

A

false

21
Q

An underground layer of bearing water

A

Aquifer

22
Q

The zone of saturation is below the water table

A

True

23
Q

Portions of Earth’s surface where water is frozen

A

Cryosphere

24
Q

If a glacier is advancing then it is moving forward and getting bigger

A
25
Q

A halocline is a seperation between

A

freshwater and saltwater

26
Q

Density increases when

A

Salinity increases

27
Q

Lag time?

A

time between peak rainfall and peak stage height

28
Q

An urban river has a longer lag time

A

false

29
Q

Faster moving river carry

A

larger sediments

30
Q

What is transpiration

A

Evaporation of water from leaves trees

31
Q

Condesation

A

gas to liquid

32
Q

run off

A

water flowing on surface

33
Q

Earth main energy source

A

sun

34
Q

factors that affect surface run off

A

type of soil, condition of the soil, slope, plant cover

35
Q

What factors affect porosity

A

shape sorting packing

36
Q

What factors affect permability

A

grain size sorting connectedness

37
Q

rounded rocks and sediment have a ____ porosity

A

high

38
Q

What is glacial till

A

unsorted and unstratified rocks, soil, and debris deposited by a retreating glacier

39
Q

Morraine

A

Accumulation of glacial till

40
Q

Drumlins are

A

long, low, tear shaped mounds of till found in clusters

41
Q

Zone of Accumulation

A
42
Q

2 types of moraines

A

Lateral, terminal

Science (4 decks)

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