What was one source of income in the middle colonies?

Iwill be giving 15 points to whoever answers the concept of checks and balances means that each branch of governmenta. has its own powers and responsibilitiesb. is clearly described in articles of the constitutionc. has the ability to correct the other branches in case of an errord. is set up so that in case of constitutional crisis, the governement will continue to operate

Two types of resources are natural and human. true or false

How many battles were confederate victories? (specifically: major battles)