When does leaching occur?
A) when water removes soluble soil components
B) when humus is dissolved
C) when organic compounds slowly decay
D) when rock is shattered by frost action

Question

When does leaching occur? 
A) when water removes soluble soil components 
B) when humus is dissolved 
C) when organic compounds slowly decay 
D) when rock is shattered by frost action

Quizplus · Accepted Answer

Leaching occurs when water removes soluble soil components, such as minerals and nutrients. This process can be caused by excessive rainfall, irrigation, or other factors that increase water movement through soil. Humus dissolution and organic compound decay may also occur in soil but are not considered leaching. Similarly, frost action may contribute to rock weathering and soil erosion, but it is not a direct cause of leaching.

When Does Leaching Occur