CH.27 Flashcards
(46 cards)
the process that involves the physical or chemical breakdown of materials on earth’s surface
weathering
a mixture of weathered rock, organic matter, water, and air that is capable of supporting plant life
soil
the removal of surface material through the process of weathering
erosion
gravity move eroded materials from one place to another is a processes called?
sediment trnsport
drops this sediment load in a process called
deposition
the land area that gathers water for major river is called a rivers what?
drainage basin
What is deflation
the removal of small particles by wind, leaving heavier particles behind
what land form depend on
wind speed. amount of time the wind blows, and sediment supply
what are 3 type of landforms from wave erosion
coastal cliffs, sea stacks, sea arches
what are two land forms created from wind deposition
sand bars and sand spits
what are sand bars
landforms that are parallel to the shoreline
what are sand spits
sandbars that extend into the water from land and curve back toward land in a hook shape
what are some things that can trigger mass waves
snow, heavy rains, earthquakes, or human activity
what are some examples of mass wasting
rock slides mudflows landslides
the process by which water enters earth and becomes groundwater below the surfce
infiltration
the upper boundary of the saturated zone is called?
water table
a rock unit that can transfer water through its pore space is called
aquifer
a material is the percentage of the materials total volume that is pore space
porosity
what percentage of water on Earth is salt water?
96 percent
what percentage of water on earth is freshwater
3 percent also found in glacier
where is the majority of freshwater found
where is the smaller percentage of freshwater founf
what is precipitation?
is a form of rain,snow,sleet,and hail
what is runoff?
where water running off the land surface
