Question 1

Chemical weathering involves the breakdown of material due to ________.

Accepted Answer

A) mechanical breakdown of rock 
B) baking in the hot sun 
C) interaction with molten rock 
D) interaction with water or air

Question 2

Salt water is the end product of this weathering process.

Accepted Answer

A) hydrolysis 
B) dissolution 
C) jointing 
D) frost wedging

Question 3

Which soil horizon is the most important to farmers for planting crops?

Accepted Answer

A) O 
B) A 
C) E 
D) B

Question 4

Why does physical weathering speed up the processes of chemical weathering?

Accepted Answer

A) Physical weathering requires abundant water,as does chemical weathering. 
B) Physical weathering produces fresh surfaces for chemical weathering to attack. 
C) Chemical weathering can occur only on small surfaces,not large ones. 
D) Chemical weathering requires salt,which is provided by salt wedging.

Exam 25: a Surface Veneer: Sediments and Soils

Chemical weathering involves the breakdown of material due to ________.

Salt water is the end product of this weathering process.

Which soil horizon is the most important to farmers for planting crops?

Why does physical weathering speed up the processes of chemical weathering?