Which statement about slash-and-burn cultivation is true? 

A)  it contours and terraces the land 
B)  ashes from burned vegetation are left in place, which add plant nutrients to the soil 
C)  crops are rotated yearly 
D)  it ultimately leads to desertification

Slash-And-Burn Cultivation

A traditional farming method that involves the cutting and burning of plants in a forest or woodland to create a field called a swidden.

Desertification

The process by which fertile land becomes desert, typically due to drought, deforestation, or inappropriate agriculture.

Plant Nutrients

essential chemicals needed by plants for growth and development, typically absorbed from the soil or through fertilization.