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

Which horizon is made up of partially weathered rocks?

• Horizon A

• Horizon B

• Horizon C

• Horizon D or R

In which horizon is most of the HUMUS?

• Horizon A

• Horizon B

• Horizon C

• Horizon D or R

Which horizon contains clay, silt, minerals, and a little humus?

• Horizon A

• Horizon B

• Horizon C

• Horizon D or R

There is an unlimited supply of fertile soil.

• True

• False

Tags

NGSS.MS-LS2-1

Which of the following is NOT one of the three types of soil?

• clay

• sand

• silt

• mud

Tags

NGSS.MS-LS2-1

_______ is the type of soil used most often with plants and on farms. It is a mixture of clay, sand, and silt.

• loam

• humus

• soil

• dirt