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ESC 100 3rd exam 2024 Questions & Answers 100% Correct!!
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What percentage of water is in oceans, ice sheets, and lakes and rivers? - ANSWERSOceans: 96.5%/97.2% Ice Sheets: 1.76%/2.15% Lakes and rivers: 2%/0.65% Evaporation - ANSWERSWater changes from a liquid into a gas Infiltration - ANSWERSWater penetrates ground Runoff - ANSWERSSurplus water...

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  • November 19, 2024
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  • esc 100 3rd exam 2024 questions answers 100 cor
  • what percentage of water is in oceans ice sheets
  • what percentage of water is in oceans ice sheets

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ESC 100 3rd exam 2024 Questions &
Answers 100% Correct!!
What percentage of water is in oceans, ice sheets, and lakes and rivers? -
ANSWERSOceans: 96.5%/97.2%
Ice Sheets: 1.76%/2.15%
Lakes and rivers: 2%/0.65%

Evaporation - ANSWERSWater changes from a liquid into a gas

Infiltration - ANSWERSWater penetrates ground

Runoff - ANSWERSSurplus water flowing over the surface of the ground

Transpiration/evapotranspiration - ANSWERSWater absorbed into plants that is then
evaporated from the leaves

Hydrologic cycle - ANSWERSEvaporation from ocean and plants, to precipitation from
rainclouds, to runoff from streams and rivers.
There is balance

Single most erosional agent on Earth - ANSWERSMoving water

Roles streams play - ANSWERSErode, transport and deposit

Zone of erosion - ANSWERSZone of a stream where the river erodes the mountains
where it starts

Zone of transport - ANSWERSLong meandering zone of a river where eroded sediment
is transported downstream

Zone of deposition - ANSWERSZone o f a river where transported material is dropped
into the ocean to form a delta

Laminar flow - ANSWERSA predictable, usually straight-flowing body of water

Turbulent flow - ANSWERSUnpredictable, erratic flow of water

Water velocity of straight and curved streams - ANSWERSIn a straight channel, the
highest velocity is found in the middle.
In a curved channel, the highest velocity is slightly toward the outer curves of the
streams

, Three factors that determine the velocity of a stream? - ANSWERSGradient
Channel shape, size, and roughness
Discharge

Gradient - ANSWERSThe slope of a stream channel

Channel shape, size, and roughness - ANSWERSFactors that determine how smoothly
water can flow through the stream channel

Discharge - ANSWERSVolume of water flowing past a certain point in a given unit of
time.
It is not constant because it depends on the amount of water flowing into the river.

Formula for discharge - ANSWERSVolume of water/Time
Average width X Average height X velocity

World's largest river - ANSWERSAmazon River

Competence - ANSWERSThe biggest thing a stream can carry. Affected by velocity

Capactiy - ANSWERSThe total of everything a stream can carry. Affected by discharge

Three ways a stream transports material - ANSWERSDissolved
Suspended
Bed

Dissolved load - ANSWERSStream load in which minerals are dissolved and flow
wherever the stream flows

Suspended load - ANSWERSStream load in which particles like clay or sand float mid-
water. Streams carry most of their sediments this way

Bed load - ANSWERSStream load in which sediment moves by rolling, sliding, or
saltating (bouncing)

Where does the greatest erosion and transport of material take place? -
ANSWERSDuring floods

Two types of stream channels - ANSWERSBedrock channels
Alluvial channels

Bedrock channel - ANSWERSSteams cut rocks in these channels

Alluvial channels - ANSWERSBank or bed consisting of unconsolidated material

Two types of alluvial channels - ANSWERSMeandering

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