Answer:
As more colonies were developed or established trading became an issue Colonists wanted to trade directly with Indians and other nations while Britain wanted to control the trade within the colonies and limit who the Colonies cold trade with. This resulted in the people of the colonies becoming more and more unhappy with Great Britain.
A second reason it became harder was the cost of the French and Indian War. The cost of the war put Britain in debt, this debt resulted in the need to raise funds. These funds were raised by placing harsh taxes on the colonist. This like the trading regulations caused unhappiness among the colonist.
Step-by-step explanation: