Deposition & Soil

Deposition & Soil

Multiple Choice

Which of the following describes a soil horizon?

• The organic material that forms from decaying plants and animals.

• A layer of soil that is different from those around it.

• A property of soil based on the size of its soil particles.

• A soil's ability to hold nutrients for plants.

Multiple Choice

In which horizon is most of the HUMUS?

• Horizon A

• Horizon B

• Horizon C

• Horizon D or R

Multiple Choice

As water in a river system or in the ocean slows down, it deposits some of its ____.

• rapids

• meanders

• fish

• sediments

Multiple Choice

Soil is made of

• weathered rocks and minerals

• dead plants and animals

• air and water

• all of the above

Multiple Choice

Which layer of soil is on the bottom?

• topsoil
• subsoil
• bedrock
• bottomsoil

Multiple Choice

The very top layer of soil is mostly made of

• Solid rock

• Clay and mineral deposits

• A mixture of minerals and organic material

• Mostly organic material (humus)

Multiple Choice

Which process describes wind blasting sand at rock and carving out arches?

• Weathering

• Erosion

• Deposition

Multiple Choice

Which process describes a mudslide flowing down a steep hill?

• Weathering

• Erosion

• Deposition

Multiple Choice

Which process describes water getting into cracks, freezing, and breaking the rocks or pavement apart?

• Weathering

• Erosion

• Deposition

Multiple Choice

______________________ occurs when eroded materials stop moving and begin to build up.

• Weathering

• Erosion

• Deposition

Multiple Choice

_____________________ is the movement of soil and rock by wind, water, ice, and gravity.

• Weathering

• Erosion

• Deposition

Multiple Choice

How does erosion compare to physical weathering?

• Both break down materials.

• Erosion breaks down materials, and weathering carries them from place to place.

• Weathering breaks down materials, and erosion carries them from place to place.

• Both move materials from place to place.