Why do the buildings in plantation are close together?
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A plantation complex in the Southern United States is the built environment (or complex) that was common on agricultural plantations in the American South from the 17th into the 20th century. The complex included everything from the main residence down to the pens for livestock. Southern plantations were generally self-sufficient settlements that relied on the forced labor of enslaved people.

Explanation:

they were destroyed coming out of the civil war but after he war they were booming. if you need an in-depth answer follow up with me  

down below

20: 5

explanation:

about 20% of the world's population lives in   southwest asia, but on less than 5% of the world's   land area.