Why is “promote the general welfare” the principle that applies to the debate about universal health care ?

Because it is part of our constotution :) bud

Those in support of this form of legislation say that Congress has the authority to provide for the general welfare of the United States, and that universal health care is an important aspect of that welfare.

Explanation:

I got it right! :)

you will need these

an outline of all three paragraphsan identification of the historical era that you are writing aboutan explanation of the term mass productiona description of two ways new technology affected industrya conclusion that shows how new technologies allowed industrialization to grow