Soil Quiz 4.13

Which layer of soil is made up mostly of rock?

• Topsoil

• Parent Material

• subsoil

• Bedrock

Which of the following is the largest particle in soil?

• sand
• silt
• humus
• clay

Soil is made of

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

Which layer of soil are these roots growing in?

• subsoil
• topsoil

How would you describe the texture of "sandy" soil?

• sticky
• gritty
• smooth
• slimy

The breaking down of rocks into smaller pieces.

• erosion
• weathering
• sediment
• sand

Which is NOT a layer of soil that we have learned about?

• bedrock

• topsoil

• undersoil

• subsoil

Which of the following is not a type of soil?

• minerals

• clay

• topsoil

• sand

Soil is only dirt.

• true

• false

_______ is the type of soil used most often with plants. It is a mixture of clay, sand, and silt.

• loam
• humus
• mud
• dirt