Soil Review

What are the 4 main soil layers?

• A, B, C, D

• F, O, A, B

• O, A, B, C

• O, A, B, D

Which of the following is NOT a natural component of soil?

• Water

• Air

• Chemicals

• Rock fragments

Which layer of soil is made of mostly organic matter?

• O horizon

• A horizon

• B horizon

• C horizon

Which layer of soil hardly has any organic matter?

• O horizon

• A horizon

• B horizon

• C horizon

Which layer of soil is typically a reddish or brownish color?

• O horizon

• A horizon

• B horizon

• C horizon

Which layer of soil contains mostly decayed organic matter?

• O horizon

• A horizon

• B horizon

• C horizon

Tags

NGSS.MS-LS2-3

Which layer of soil is known as topsoil?

• O horizon

• A horizon

• B horizon

• C horizon

The C horizon is the most developed soil layer.

• True

• False

What is humus?

• Rock fragments

• Decayed organic matter

• Iron and clay mixture

• Mud

Tags

NGSS.MS-LS2-3

Soil layers are based on different ___________ properties.

• Magnetic

• Chemical

• Physical

• Electrical