Soil

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

• topsoil
• undersoil
• subsoil
• bedrock

Humus is.....

• the dead parts of plants and animals in soil.
• A food we eat with pretzels.
• The tiny particles inside of soil
• The roots that come off of a plant and live in soil.

Which layer of soil are these roots growing in?

• subsoil
• topsoil

Soil is made of

• weathered rocks and minerals
• dead plants and animals
• air and water
• all of the above

Which layer of soil is on the bottom?

• topsoil
• subsoil
• bedrock
• bottomsoil

Are there minerals in soil?

• Yes
• No

What is the layer of soil just below the topsoil?

• soil
• subsoil
• topsoil
• terrace farming

Layers of soil are also known as:

• Soil Profiles
• Soil Horizons
• Soil sheets
• Soil cores

Humus is bad for soil.

• True
• False

What is the common name for Horizon A?

• bedrock
• topsoil
• parent material
• subsoil