Geology Unit 1 Review

The process by which rock materials are broken down by the actions of physical and chemical processes

• Erosion

• Rock fall

• Weathering

• Rock wedging

Fragments of weathered rock are called sediment.

• True

• False

__________ is the mechanical breakdown of rocks into smaller pieces.

• Physical weathering

• Chemical weathering

• Depositing

• Erosion

_________ is the breakdown and decomposition of rocks as a result of chemical reactions and processes.

• Physical weathering

• Erosion

• Deposition

• Chemical Weathering

Water freezes in the crevasses of a rock causing it to break apart is an example of ________.

• chemical weathering

• physical weathering

Mosses grow on a rock, producing a weak acid, the wears away the rock over time is an example of ____________.

• chemical weathering

• physical weathering

the process when eroded materials are dropped, or laid down, in a new location

• weathering

• erosion

• deposition

• cementation

the process by which wind, water, ice, or gravity transport (move) weathered materials from one location to another

• weathering

• erosion

• deposition

• compaction

What is the process by which a delta forms?

• A stream cuts a new channel during a flood.

• A river overflows its banks and deposits sediment.

• As it enters the ocean, a river slows down and drops its sediment.

The Sphinx in Egypt was likely built about 4,500 years ago. If weathering and erosion continue to have the same effect on the Sphinx, what do you think it will look like in 4,500 MORE years?

• It will not change

• It will look more detailed

• It will look much less detailed

• It will disappear