24 terms

Hydrosphere-Water Cycle/Freshwater

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Hydrosphere
all of the water on Earth.
Water Cycle
the series of natural processes by which water continually moves throughout the hydrosphere.
evaporation
liquid water changes into water vapor and enters the atmosphere.
transpiration
the evaporation of water vapor from plants.
respiration
water vapor is released when animals breathe.
condensation
water vapor cools and forms back into a liquid. (This forms clouds)
precipitation
liquid water falls to the surface as rain, snow, sleet or hail.
groundwater
water is stored in the cracks and pores beneath the surface.
freshwater
water that has less than 0.2% salt dissolved in it
sea ice
ice that forms when sea water freezes
ice sheet
a glacier that spreads over land in all directions
alpine glacier
a glacier that forms in the mountains
point-source pollution
pollution from a single source that can be identified
nonpoint-source pollution
pollution from several widespread sources that cannot be traced back to a single location
runoff
water that flows over Earth's surface
stream
a body of water that flows within a channel
watershed
an area of land that drains runoff into a particular stream, lake, ocean or another body of water
estuary
a coastal area where freshwater from rivers and streams mixes with salt water from seas or oceans
lake
a large body of water that forms in a basin surrounded by land
aquifer
an area of permeable sediment or rock that holds significant amounts of water
permeability
the measure of the ability of water to flow through rock and sediment
porosity
the measure of a rock's ability to hold water
water table
the upper limit of the underground region in which the cracks and pores within rocks and sediment are completely filled with water
wetland
an area of land that is saturated with water for part or all of the year
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