Soil

Soil formation begins with the weathering of_______.

• Humas
• Subsoil
• Litter
• Rock

The layer of soil which the topsoil is found.

• Horizon A
• Horizon B
• Horizon C
• Horizon D or R

Decayed organic material in soil is called______.

• Litter
• Silt
• Humus
• Clay

Topsoil which contains the HUMUS is the soil layer best for growing plants.

• True
• False

In which horizon is the Bedrock

• Horizon A

• Horizon B

• Horizon C

• Horizon R

The horizon with tree roots and decomposers is called ________.

• bedrock

• Horizon A

• Horizon B

• Horizon C

The organic layer, living plants, closest to the surface

• Horizon O

• Horizon A

• Horizon B

• Horizon C

 Also known as subsoil, small pebbles

• Horizon O

• Horizon A

• Horizon B

• Horizon C

 Layer that has large rocks

• Horizon O

• Horizon A

• Horizon B

• Horizon C

Vertical section of soil that shows all of the layers

• Soil Horizon

• Soil

• Soil Profile

• Horizon A