I suppose the C is right, because at that time,Spain and Portugal take advantage of slave and cane to be rich, they buy the black people from African to plant sugar cane.
Answer:
A. It causes disease to spread more easily.
Explanation:
The answer is A becuase of overcrowding there would be more diseases since they are "piled" on top of each other. It would also cause a higher demand for jobs and houses.
Answer:
Mexico and China have very similar exporting baskets, meaning the two countries ship similar products overseas every year.
Explanation:
Since China’s induction to the WTO in 2001, it has surpassed Mexico and has become the second largest exporter to U.S. market.