History is an impact value
<span>subsistence farming i believe it might be D though</span>
Overcrowding and slums developed in many impoverished countries in the 20th century, mostly due to large migrations to cities from people looking for work.
Answer:
wheat, rice, barley, oats, coffee, sugar cane, citrus fruits, melons and Kentucky bluegrass.
Do you mean what caused it? or what the after affects where?
