Answer:
B. subsistence agriculture
Explanation:
Subsistence agriculture refers to that type of agriculture in which crops were grown in order to feed their own families. These crops were not grown for selling but for themselves in order to survive. At that time there were no markets where all food stuff available. They have plenty of lands where these people grow what they want to eat. They also hunt animals such as rabbit and deer etc in order to eat them.
Highly rotated axis........
It's directly south of the United States.
It is the expansion of poorly planned developments, spreads out over large amounts of land, putting long distances between homes, stores, and work.
Its B because it increases the amount of dust carried by wind
