chpt. 4 Flashcards
(44 cards)
evaporation
turning from liquid into vapor
magma
liquid rock within earth
weathering
rocks breaking down and decaying over time
erosion
movement of surface material from one place to another
ecosystem
a community of interacting organisms and their environment
condesation
water from gas to liquid
sediment
rocks broke into gravel, sand, and mud
glacier
masses of ice
plateau
elevated flatland that rises sharply above nearby land on at least one side
desalinization
removing salt from ocean water
headwaters
first and smallest stream from a runoff
tributaries
any smaller stream that flows into a larger stream
humus
the organic component of soil made up dead plant material
contour plowing
plowing across a hill
crop rotation
planting different crops in alternating years
deforestation
the action of clearing a wide area of trees
reforestation
the process of replanting an area with trees
aquifers
a body of permeable rock which can contain or transmit groundwater
dialect
a particular form of a language which is peculiar to a specific region or social group
leaching
drain away from soil, ash, or similar material by the action of percolating liquid, especially rainwater
urbanization
the characteristics of a town or city
population density
the number of people living in each unit of an area
natural boundary
points of a region that marks the beginning of a boundary line
abyssal plain
flat, smooth regions on the ocean floor