RIVERS Flashcards

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0
Q

ATTRITION

A

pebbles and rocks carried by river knock together and get smaller and wear away

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1
Q

EROSION

A

wearing away & breakdown of rock by a moving agent

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2
Q

HYDRAULIC ACTION

A

air, water and debris is forced into cracks causing them to exams and break down

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3
Q

CORROSION/SOLUTION

A

chemicals wear away rock, weak acid in water

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4
Q

CORRASION/ABRASION

A

rocks and stones erodes bed and sides of river bed

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5
Q

TRANSPORTATION

A

movement of load downstream by a river

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6
Q

SOLUTION

A

dissolved materials are carried in solution

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7
Q

TRACTION

A

large stones roll along river bed

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8
Q

SUSPENSION

A

light material held in suspension and transported

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9
Q

SALTATION

A

small rocks bounce along river bed

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10
Q

DEPOSITION

A

where material is put down by a river due to loss of energy

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11
Q

DISCARGE

A

volume of water in river

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12
Q

OCCUPIED CHANNEL DEPTH

A

distance across channel at water surface

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13
Q

CHANNEL DEPTH

A

height from water surface to channel bed

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14
Q

AVERAGE VELOCITY

A

speed at which river travels (m/s)

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15
Q

LOAD QUANTITY

A

total load

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16
Q

LOAD PARTICLE SIZE

A

size of particles carried

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17
Q

CHANNEL BED ROUGHNESS

A

how rough/angular channel bed is

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18
Q

GRADIENT

A

gradient channels traveling down

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19
Q

WHATERSHED

A

I area of boundary spreading drainage basins

20
Q

DRAINAGE BASINS

A

area of land drained by a river & it’s tributaries

21
Q

MOUTH

A

river meets sea (estrury/delta)

22
Q

STORES

A

anywhere water is held

23
Q

TRANSFER

A

way in which water is moved

24
Q

GROUNDWATER STORAGE & FLOW

A

water held and travels through rock layer

25
Q

THROUGH FLOW

A

water flows through soil

26
Q

SURFAE RUN OFF

A

water flowing over land

27
Q

INFILTRATION

A

water going into soil

28
Q

PERLOCATION

A

water going from soil to rock layer