B this is an obvious answer
Answer:
Shifting cultivation is an agricultural system in which a person uses a piece of land, only to abandon or alter the initial use a short time later. This system often involves clearing of a piece of land followed by several years of wood harvesting or farming until the soil loses fertility.
The U.S. Constitution and state constitutions allow for amendments. ... Most of them follow the form of the U.S. Constitution closely, leading to similarities between the documents .
Prior to the Industrial Revolution, which began in Britain in the late 1700s, manufacturing was often done in people's homes, using hand tools or basic machines. Industrializationmarked a shift to powered, special-purpose machinery, factories and mass production.
