soil Flashcards
1
Q
loose weathered material on Earths surface is made of rock particles,minerals, decayed organic materials, air, and water.
A
Soil
2
Q
the solid layer of rock beneath the soil
A
bedrock
3
Q
decayed, organic material in soil
A
humus
4
Q
a layer of soil that differs in color and texture from the layers above or below it
A
soil horizon
5
Q
consists of clay and other particles from topsoil but little humus
A
subsoil
6
Q
dead plants and leaves on the ground
A
litter
7
Q
organisms that break the remains of dead organisms into smaller pieces and digest them with chemicals
A
decomposers
8
Q
a crumbly, dark brown soil that is a mixture of humus, clay, and other minerals
A
topsoil
