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desertification
when animals eat large amounts of land cover
the cleaning and purifying of soil
desert conditions in areas where plant cover was destroyed
open pits by removal of soil from surface of the ground
overgrazing
when animals eat large amounts of land cover
desert conditions in areas where plant cover was destroyed
the cleaning and purifying of soil
the recycled nutrients after being broken down
crop rotation
desert conditions in areas where plant cover was destroyed
reduce number of times soil is tilled
plant different crops on the same field in different years
the recycled nutrients after being broken down
conservation tillage
when sulfide minerals react with air and water
reduce number of times soil is tilled
plant different crops on the same field in different years
the recycled nutrients after being broken down
terrace
planting trees between fields to reduce soil carried off
flat, steplike areas built on a hillside to hold rainwater
reduce number of times soil is tilled
plowing along curves or contours of slopes
contour plowing
reduce number of times soil is tilled
when sulfide minerals react with air and water
plowing along curves or contours of slopes
flat, steplike areas built on a hillside to hold rainwater
windbreaks
planting trees between fields to reduce soil carried off
flat, steplike areas built on a hillside to hold rainwater
plowing along curves or contours of slopes
when sulfide minerals react with air and water
The breakdown of rock by acidic water is an example fo
desertification
oxidation
chemical weathering
mechanical weathering
What is the main component of soil?
humus
water
air
rock particles
contour plowing, strip-cropping, and terracing are conservation methods made to reduce the
activity of microorganisms
pore space in soil
runoff water
acidity in soil
erosion
the downhill movement of masses or rock and soil
weathered particles are picked up and moved to another place
a sudden fast movement of rock and soil
when sediment is put in a new location
deposition
when sediment is put in a new location
the downhill movement of masses or rock and soil
a sudden fast movement of rock and soil
weathered particles are picked up and moved to another plac
mass wasting
the downhill movement of masses or rock and soil
weathered particles are picked up and moved to another place
a sudden fast movement of rock and soil
when sediment is put in a new location
landslide
weathered particles are picked up and moved to another place
a sudden fast movement of rock and soil
when sediment is put in a new location
the downhill movement of masses or rock and soil
Why is soil an important resource?
it helps create farms
it is food for animals
it helps fill in space for development
helps plant growth, purifies water, and recycles nutrients
Which human activity does NOT directly affect soil?
hunting
construction and development
farming
mining
