ch 7.3 Flashcards
what percentage of water on earth is salt water
97 percent
what percentage of water on earth is freshwater
3 percent
where is the majority of fresh water found
found in glaciers
where is the smaller percentage of the fresh water found
lakes rivers and groundwater
what is precipitation
rain snow sleet and hail
what is run off
water running off the land surface
what is infiltration
water enters earth and becomes ground water below the surface
what is transpirtation
plants release water vapor into the atmosphere through their leaves
what is evaporation
when water enters the atmosphere as water vapor
what is condesation
water vapor collides with other water vapor
what is water cycle
from the land to the atmosphere and then back to the land
what is an unsaturated zone for groundwater storage
porous area where water easily passes through
what is saturated zone for groundwater storage
where water completely fills the pore space
what is water table
the upper boundary
what does it mean if sediment is permeable
easier water can infiltrate through the ground