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Define Weathering
Wear away or change the appearance or texture of something by long exposure
Define Leaching
The loss of nutrients and materials that have been dissolved as they move through soil
Which soil horizon is contains decomposed plants and animals?
 
O Horizon
 
C Horizon
 
A Horizon
 
B Horizon
Which soil horizon is commonly called the subsoil?
 
B Horizon
 
A Horizon
 
C Horizon
 
O Horizon
Which soil horizon is also known as "bedrock"
 
R Horizon
 
B Horizon
 
C Horizon
 
A Horizon
Which soil particle is the smallest in size?
 
clay
 
sand
 
silt
 
rock
Which soil particle is the largest in size?
 
sand
 
silt
 
clay
 
rock
What is the area between soil particles called
 
pore space
 
humus
 
soil profile
 
horizons
Which soil component makes up about 25% of an ideal soil?
 
water and air
 
water
 
air
 
organic matter
Which soil component makes up about 45% of an ideal soil?
 
mineral
 
air
 
water
 
organic matter
Which soil component makes up about 5% of an ideal soil?
 
organic matter
 
water
 
air
 
mineral
Which of the following is NOT a type of soil particle?
 
rock
 
silt
 
clay
 
sand