27.3 Flashcards
infiltration
posses by which water enters earth and becomes groundwater below the surface
water table
upper boundary of the saturated zone
aquifer
rock unit that can transfer water through its pore space
porosity
parentage of the materials total volume that is pore space
what percentage of water on earth is salt water
97 percent
what percent of water on earth is freshwater
3 percent
where is the majority of freshwater found
2 percent of the three percent is glasers
where is the smaller percentage of freshwater found
lakes rivers groundwater
what is precipitation
rain snow sleet hail
what is runoff
water runs off land surface
what is infiltration
water enters and becomes ground water
what is transpiration
plants release water vapor into the atmosphere through leaves
what is evaporation
water enters the atmosphere as water vapor
what is condensation
when water vapor collides with other water molecules to form water droplets
what is the water cycle
water on land that evaporates and comes back to earth