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Physical Science > 27.3-4 > Flashcards

27.3-4 Flashcards

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Biology 101 flashcards
1
Q

principle of superpositon

A

law of superposition a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock the oldest layer is at the base and that the layers are progressively younger with ascending order in the sequence.

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2
Q

relative dating

A

The law of superposition states that a sedimentary rock layer in a tectonically undisturbed sequence is younger than the one beneath it and older than the one above it

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3
Q

infiltration

A

process which water enters earth and becaome ground water

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4
Q

water table

A

upper boundary of a upper zone

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5
Q

porosity percsentage of materials total volume

A
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6
Q

aquifer

A

transfer through pore space

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7
Q

absolute dating

A

process of assigniing exact material

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8
Q

uniformitarianism

A

whcih states thast he laws of naturfe today

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9
Q

unconformities

A

are gaps in rock

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10
Q

fossils

A

remains or traces of organsims

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11
Q

what persent of water on earth is salt

A

97%

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12
Q

what percentage of water on eartth is fresh

A

3%

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13
Q

where is the majority of fresh water found

A

lakes river and ground water

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14
Q

where is the smaller percentage of fresh water found

A
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15
Q

what is precipitation

A

rain snow sleet and hail

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16
Q

what is run off

A

water running offland surface

17
Q

what is infiltration

A

when water enters earth and becomes ground water

18
Q

whatis transpiration

A

when plants release water vapor into the atmosphere

19
Q

what is evaporation

A

when water vaporizes and enters the atmosphere

20
Q

what is condensation

A

water vapor colides wirth other water molicules

21
Q

what is the water cycle

A

water goes to cloiuds and back to easrth

22
Q

what is an unsatgurated zone

A

a porus area where water easily passeds through

23
Q

saturated zone

A

under unsaturatedzone

24
Q

water ends

A

unsarudet zone

25
Q

what is an aquifer

A
26
Q

whatis the name of the great plainjs aquifer

A
27
Q

eight staes

A
28
Q

how are wtaer speings filled

A
29
Q

what is an arestian well

A
30
Q

what is a cone depression

A

Physical Science (13 decks)

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