Answer:
Probably because in the south, the farmers needed help with gathering alot of crops, such as cotton. In the north, they didn't have farms, so they didn't need slaves.
Not sure but it affects one another because of trade, and the economy starts growing.
Answer:
A. Southeast Asia
Explanation:
Labour intensive intertillage is reffered to the intensive use of very large labour for agriculture and this is very common in China in South East Asia because of their very high population
Answer
Permeable rock strata or sediment that transmit groundwater freely are called aquifers.