crops in the New England colonies consisted of corn, pumpkins, rye, squash, and beans. tools were simple and consisted of rakes, and shovels. most of the economy it the new England colonies was based on industrial manufacturing and produce was got from trade with the middle but mostly the southern colonies.
The reason why the Mongols withdrew form Asia was because of horrible weather conditions and diseases. If I had to pick, I would pick A.) Diseases because A is more severe then the weather conditions.