because a bay consists of water, while a straight section on the coast wouldn't be much for miles. a bay is where these trading and fishing communities would b getting their sources from. this makes being located on or near a bay much more convenient than on a straight section of the coast
It displays three type of glacial erosion, like the cirque that is created by the side wards erosion and pyramidal peak also called as the horn. And the presence of the Arêtes that is a narrow region of rocks that are separated by the two valleys. The three main type of the erosion process of the glaciers are of plucking, and abrasion and the freeze-thaw
<u><em>The South China Sea is bounded on the west by the Asian mainland, on the south by a rise in the seabed between Sumatra and Borneo, and on the east by Borneo, the Philippines, and Taiwan.</em></u>
