What was the major conflict in the dispute between Britain and its American colonies that leads to the colonists declaring independence?

The major taxes levied upon them-Stamp Act primarily was a challenge to the colonists

The Boston Massacre-the shedding of colonist blood kind of set off a bomb, the patriots were ready.

The Continental Congress-Discussed independence

Declaration of Independence-showed Britain and the rest of the world that they were ready for war and stated exactly what they sought to achieve going into this war.

Explanation:

acid rain is the answer

answer; by working independently, the states have a high likelihood of developing innovative solutions that can be employed in other states;