Unit 8 Exam

This type of weathering occurs when rock is physically broken down into smaller pieces of rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

This type of weathering occurs when rocks weaken then break down due to chemical changes in the composition of the rock.

• mechanical weathering
• chemical weathering
• erosion weathering
• deposition

These rocks were broken apart from the continuous freeze/thaw of water in the cracks of the rocks. This is an example of:

• frost wedging

• acid rain

• permeability

• abrasion

This feature is an example of what type of weathering?

• chemical

• mechanical

What is the process of moving sediments from location to another?

• Deposition

• Erosion

• Weathering

• Compaction

Which of the following are agents of erosion?

• wind

• water

• glacier

• gravity

• all of the above

Soil formation begins with the weathering of_______.

• Humas
• Subsoil
• Litter
• Rock

Decayed organic material in soil is called______.

• Litter
• Silt
• Humus
• Clay

Which horizon is made up of partially weathered rocks?

• Horizon A
• Horizon B
• Horizon C
• Horizon D or R

The texture of soil depends mainly on

• the types of plants that grow in the soil.
• the size of the particles in the soil.
• the color of the soil.
• the number of worms in the soil.