The answer is A a warm climate and good water supply. The coastal plains are known for having a sole source of drinking water as well as a good warm climate.
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It would help to attach a picture or explain the question better. How else are we supposed to know the places the question is talking about?
Highwall mining is often used when excavating an open-pit mine becomes too expensive. There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time.
The line located at 0° latitude is the equator.
