ES Unit 5

The process that occurs when physical forces break rock into smaller pieces with changing the rock's chemical composition is called

• exfoliation

• mechanical weathering

• chemical weathering

• erosion

Which of the following weathering process involves the constant freezing and thawing of water?

• unloading

• exfoliation

• frost wedging

• spheroidal weathering

The inscriptions on marble gravestone become harder and harder to read over time. This is caused by

• frost wedging

• exfoliation

• mechanical weathering

• chemical weathering

When rock is exposed to chemical weathering, it

• changes into one or more new compounds

• breaks into tiny pieces

• splits

• loses its outer layers

Which of these is NOT a factor that affects that rate of weathering in rocks?

• evolution

• rock characterstics

• climate

• amount of exposed area

Chemical weathering is highest in areas that are

• dry and arid

• cold and frigid

• cold and wet

• very warm and wet

Rock features such as the sculpted pinnacles seen in Bryce Canyon National Park are the result of

• exfoliation

• differential weathering

• chemical weathering

• uploading

Which of the following is NOT a major component of soil?

• mineral matter

• humus

• air

• earthworms

In general, the largest component of bog soils is

• water

• organic matter

• air

• living organisms

Soil that forms on unconsolidated deposits is called

• transported soil

• residual soil

• humus

• bedrock