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