What was the impact of sugar growing on British West Indian society and rice growing on South Carolina's evolution?

These two lucrative cash crops introduced into British
colonies in the Caribbean and in the South Carolina marshlands were labor intensive
crops that required a lot of water and a lot of land.  African slaves quickly became the
dominant source of this labor, and in South Carolina particularly because slaves stolen
from West Africa already knew how to grow rice.

The large
number of these slaves created an interesting cultural mix of African and English
languages, customs and beliefs, with some native dialects and traditions blended
in.

Charleston, South Carolina quickly became the largest
slave market in North America, and Barbados in the Caribbean became the largest market
there, in order to feed the sugar, spice, tobacco and rice cash crop plantations that
made up most of the British imperial economy.