The main chemical weathering processes all take place more or less simultaneously because they all require the presence of ________.
A) water
B) air
C) hydrogen
D) plants
E) salt crystal growth

Question

Quizplus · Accepted Answer

The main chemical weathering processes (such as oxidation, hydrolysis, and carbonation) all require the presence of water. Therefore, choice A is the correct option. Air, hydrogen, plants, and salt crystal growth may play a role in some chemical weathering processes, but they are not essential for all of them.

The Main Chemical Weathering Processes All Take Place More or Less