What is the main idea of the third and fourth paragraphs?

Explanation:

I could not find the rest of the question but I will try to help you by explaining how can you find the main idea in some paragraphs.

The main idea of some passage or paragraph is considering what the passage\ paragraph is about. You can find it by reading the text couple of times and see what the text is describing and explaining to you.

When you find what the text is about, you will know what is the main idea of it.

the committees of correspondence were the american colonies’ means for maintaining communication lines in the years before the revolutionary war. in 1764, boston formed the earliest committee of correspondence to encourage opposition to britain’s stiffening of customs enforcement and prohibition of american paper money. the following year, new york formed a similar committee to keep the other colonies notified of its actions in resisting the stamp act. in 1773, the virginia house of burgesses proposed that each colonial legislature appoint a committee for intercolonial correspondence. the exchanges that followed built solidarity during the turbulent times and bring about the formation of the first continental congress in 1774.