Chapter 5 Study Guide
The process that occurs when physical forces break rock into smaller pieces without changing the rock’s chemical composition is called ______.
Weathering and Erosion
What is the weathering processes involving the constant freezing and thawing of water?
Frost Wedging
What are the processes of mechanical weathering
Frost Wedging,Unloading and Biological Activity
When water freezes, its volume
increase
Which of the following is the result of Chemical weathering?
A rock that has been split in two
What kind of weathering would cause the writing on a marble gravestone to become harder and harder to read over time?
Chemical Weathering
A soil’s texture is determined by
Percentages of clay, Silt and Sand
The main source of organic matter in soil is
plants
In Figure 5-2, what is the layer labeled T composed of?
A soil that is characteristic of the humid eastern United States is
Pedalfer
A soil associated with the hot and wet tropics is
Laterite
Which of the following human activities has caused an increase in soil erosion?
All of the Above
The process responsible for moving material down-slope under the influence of gravity is called
Mass Movement
What is the Slowest type of mass movements?
Creep
What is responsible for the formation of Exfoliation Domes?
Unloading
The gradual rounding of the corners and edges of angular blocks of rock is called
Spherodical Weathering
The process called ____involves physical forces that break rock into smaller pieces.
Mechanical Weather
In the process of ___, water freezes and expands, enlarging cracks in rocks.
Frost Wedging
A large pile of debris that forms at the base of a slope is called
Talus
The most important agent of chemical weathering is
Water
The layer of rock and mineral fragments produced by weathering, and covering nearly all of Earth’s land surface, is called
Regolith
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