ForSci_BW_11/01_Soil Horizons and Characteristics

What are soil horizons?

• Distinct layers of soil formed over time

• The process of soil erosion

• Different types of rocks found in soil

• The study of soil composition

Which soil horizon is commonly referred to as the topsoil?

• C horizon

• B horizon

• D horizon

• A horizon

Which soil horizon consists of organic matter such as decomposed leaves and plant material?

• C horizon

• B horizon

• O horizon

• A horizon

What is the order of soil horizons from top to bottom?

• O, A, E, B, C, R

• A, B, C, D, E, F

• O, A, B, C, D, E

• R, C, B, A, O, E

Match the following soils to the correct description.

• B horizon

• partially weathered parent material

• C horizon

• topsoil;; upper part consists mostly of organic matter; lower part is mixture of mineral matter and organic matter

• A horizon

• subsoil; contains fine clay particles from A horizon

Which layer of soil is important for farming?

• topsoil

• subsoil

• parent material

• bedrock

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-3