Soil and Food Production Quiz Review

What is soil?

• Weathering forms the rocks and minerals

• A mixture of rock, mineral particles and organic matter.

• The layers in the soil profile used to classify soil types.

• Organic material in soil comes from living things such as plant and animal remains

What is another name for the O horizon?

• Organic

• Optional

• Orizon

• Organism

What is another name for the A horizon?

• Top Soil

• Anaerobic

• Subsoil

• Roots

What is another name for the B horizon?

• Top Soil

• Bedrock

• Subsoil

• Base soil

What is another name for the R horizon?

• Top Soil

• Bedrock

• Subsoil

• Parent Material

What is a soil horizon?

• Weathering forms the rocks and minerals

• A mixture of rock, mineral particles and organic matter.

• The layers in the soil profile used to classify soil types.

• Is a vertical cross section of soil.

Made of small fine soil particles & other organic matter. Plant roots, fungi, & earthworms live in the horizon. It is typically 2-10ft deep.

• A Horizon

• C Horizon

• Bedrock

• O horizon

• B Horizon

Made of solid rock & nothing lives in the layer

• A Horizon

• C Horizon

• Bedrock

• O horizon

• B Horizon

Made of grass, decaying organic matter. Plants & insects live here. It is typically 0-2ft deep.

• A Horizon

• C Horizon

• Bedrock

• O horizon

• B Horizon

What is the weathering process in which rocks are broken down into smaller pieces (sediments) and do not change the rock composition?

• chemical weathering

• mechanical weathering

• acid rain

• oxidation