Which of the following is a subsistence crop?
Papyrus
Rubber
Tobacco
Corn
Cotton
Swidden agriculture is a form of subsistence agriculture that is defined by which of the following activities?
Growing one crop exclusively in all fields
Planting multiple crops in one plot of land
Rotating crops between different fields depending on the season
Flooding a piece of land to stimulate growth
Cutting down trees and lighting the remaining plants on fire
