w-e-d & topo maps Flashcards

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1
Q

erosion

A

the movement of sediment from one place to another

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2
Q

deposition

A

laying down of sediment that his been eroded

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3
Q

chemical weathering

A

Dissolves or changes them into different minerials oxidation is acid rain and plant acid

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4
Q

mechanical weathering

A

rocks are broken apart by a physical process, growing plants, burrowing animals and freeze and thaw cycles

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5
Q

water erosion

A
  • stream erosion- erodes the channel ( wider ) & erodes the bottom ( deeper )
  • rain drop erosion- issue on farm land
  • wave erosion- carries stuff out to sea also lakes
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6
Q

wind erosion

A

depends on size and speed

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7
Q

glacier erosion

A

large sheets of ice as snow is packed on over time // it picks up rock and moves it with it.

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8
Q

gravity erosion

A

movement of rock downslope due to the pull of gravity // aka mass wasting

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9
Q

delta and alluvial fans

A

fan shape deposited at the mouth of stream

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10
Q

flood plains

A

level strips of land on sides of river that are deposited during flooding

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11
Q

meander and oxbow lakes

A

meander- bend in river

oxbow- meander that gets cut off

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12
Q

topographic map

A

a two dimensional model of the earths surface // also known as a contour map

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13
Q

contour lines

A

elevation above sea level is shown using // connects points of equal elevation

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14
Q

relief

A

the difference between high and low elevation

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15
Q

contour interval

A

the difference between each line in elevation // the different must say the same between all lines

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16
Q

contour lines

A

never cross

17
Q

contours

A

form closed loops // even if not shown on map

18
Q

stuff

A

maximum possible elevation for a hill is one less than what the next contour should be

19
Q

steeper slope

A

contour lines are closer together

20
Q

gentle slope

A

contour lines are farther apart

21
Q

benchmark

A

a location whose exact elevation is known // is noted on a brass or aluminum plate. they are shown on maps by a X with the letters BM written next to them

22
Q

map scale

A

indicates the distance on the map compared the distance in the real world

23
Q

weathering

A

process that works to breakdown rocks