Complex sentence: Because England's climate did not allow for the same quality of tobacco as that grown in America and because the colonists did not have to worry about scarcity of tobacco this eventually led to tobacco being the main form of trade with England.
Split into simpler sentences: Because England's climate did not allow for the same quality of tobacco as that grown in America, the colonists did not have to worry about scarcity of tobacco. This eventually led to tobacco being the main form of trade with England.