Soil Layers/Soil Horizons Review

Front

What is the C Horizon in soil layers?

Back

The C Horizon contains partially weathered rock and is located below the A and B Horizons.

Front

Which layer of soil is known as topsoil?

Back

The A Horizon is known as topsoil, rich in organic material and nutrients.

Front

What type of soil particle is flat and feels sticky?

Back

Clay is the soil particle that is flat and feels sticky.

Front

Which soil particle has the lowest infiltration rates?

Back

Clay has the lowest infiltration rates among soil particles.

Front

If a soil has 20% sand and 20% clay, what is its texture?

Back

The soil texture is silt loam.

Front

What is the role of the O Horizon in soil?

Back

The O Horizon is the topmost layer, composed mainly of organic matter such as decomposed leaves and plants.

Front

What is the B Horizon also known as?

Back

The B Horizon is also known as the subsoil, where minerals leached from above accumulate.

Front

What is the difference between sand, silt, and clay?

Back

Sand has larger particles, silt has medium-sized particles, and clay has the smallest particles.

Front

How does soil texture affect water retention?

Back

Soil texture affects water retention; clay retains water well, while sand drains quickly.

Front

What is bedrock in relation to soil layers?

Back

Bedrock is the solid rock layer beneath all soil horizons, providing a foundation.