To what extent would it be accurate to say that the new england, middle and southern colonies had merged to create a single american society by the 1770s

To  a smaller extent. This is because the New England societies were primarily established on staunch religious views which led to little separation between the state and the church. Middle Colonies on the other hand had more religious freedom.  The differences in geography also resulted in different economic occupations

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali

the nets, boats and fishing poles are examples of determinants for catching fish. if a fisherman has a quality fishing net and fishing poles plus a high end fishing boat, then there is a big opportunity or possibility that he may catch more fish.

moreover, fish production is directly proportional to its determinants such as boat, net, fishing poles and bait. therefore, a good equipment is a determinant while fisherman’s effort is an input to his fishing skills and the output is the production made out of catching fish.