The layer of soil (Layer A) that is underneath the organic material horizon is called ________________.

• topsoil

• subsoil

• bedrock

• Weathered rock

Which layer of soil (Layer R) is on the bottom?

• topsoil

• subsoil

• bedrock

• Weathered soil

Which of the following is NOT one of the layers of soil?

• topsoil

• undersoil

• subsoil

• weathered rock

What do we call the layers of soil?

• Deposits
• Horizons
• Minerals
• Rocks

What is the layer of soil (Layer B) just below the topsoil?

• soil

• subsoil

• topsoil

• terrace farming

Which horizon is made up of partially weathered rocks?

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

What is the name of Soil Horizon O?

• Bedrock
• Topsoil
• Organic Layer
• Subsoil

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

What are the two types of weathering?

• Rain and Snow
• Precipitation and Temperature
• Physical and Chemical
• Metal and Nonmetal

Tags

NGSS.MS-ESS2-2

What is the first step of soil formation?

• humus decomposing
• nitrates being absorbed by the plant roots
• weathering of parent rock
• climate changing

What are the five major factors that influence soil formation?

• chronological factors (time), temperature, geology, topography, biological factors, and climate

• chronological factors (time), precipitation, geology, temperature, climate

• chronological factors (time), geology, topography, biological organisms, and climate

• geology, topography, biological organisms, climate, and amount of earthworms