Shared Flashcard Set

Details

Ch.5 study guide
Study guide
30
Environmental Studies
9th Grade
03/15/2013

Additional Environmental Studies Flashcards

 


 

Cards

Term
The process that occurs when physical forces break into smaller pieces without changing the rock's chemical composition is called.....
Definition
Mechanical Weathering
Term
What is the weathering process involving the constant freezing and thawing of water?
Definition
Frost wedging
Term
What are the processes of mechanical weathering?
Definition
Frost wedging, unloading, biological activity
Term
When water freezes, its volume.....
Definition
Its volume expands by about 9%, exerting a tremendous outward force. This force is great enough to burst water pipes during the winter.
Term
Which of the following is the result of chemical weathering?
Definition
A rock that has been changed into one or more new compunds
Term
What kind of weathering would cause the writing on a marble gravestone to become harder and harder to read over time?
Definition
Term
A soil's texture is determined by....
Definition
You use categories of clay, silt, and in the soil
Term
The main source of organic matter in soil is.....
Definition
Plants
Term
In figure 5-2, what is the layer labeled Y composed of?
Definition
Term
A soil that is characteristic of the humid eastern United States is.....
Definition
Term
A soil associated with the hot and wet tropics is....
Definition
Laterite
Term
Which of the following human activities has caused an increase in soil erosion?
Definition
Term
The process responsible for moving material down-slope under the influence of gravity is called....
Definition
Term
What is the force behind mass movements?
Definition
Gravity
Term
What is the slowest type of mass movement?
Definition
Term
What is responsible for the formation of exfoliation domes?
Definition
Term
The gradual rounding of the corners and edges of angular blocks of rock is called....
Definition
Term
The process called....... involves physical forces that break rock into smaller pieces.
Definition
Term
In the process of......, water freezes and expands, enlarging cracks in rocks.
Definition
Term
A large pile of debris that forms at the base of a slope is called.....
Definition
Term
The most important agent of chemical weathering is.....
Definition
Water
Term
The layer of rock and mineral fragments produced by weathering and covering nearly all of Earth's land surface, is called.....
Definition
Term
Human activities that remove vegetation have resulted in a(n)..... in soil erosion.
Definition
Term
The force that drives mass movements is....
Definition
Gravity
Term
List three factors that affect the rate of weathering.
Definition
Mechanical weathering, rock characteristics, and climate
Term
How are soils classified based on texture?
Definition
Term
What are the three processes that breaks rocks into smaller pieces during mechanical weathering?
Definition
Term
Use Figure 5-1 to determine what a soil is called if it has 20 percent clay, 60 percent silt, and 20 percent sand.
Definition
Term
In a well-developed soil profile, which horizon is the uppermost layer?
Definition
Term
In figure 5-2, what is the layer labeled X?
Definition
Supporting users have an ad free experience!