1. According to the speaker, what have some called "potentially the most important medical
advance this century"? How does it work?

According to the speaker, the potentially most important medical advance in this century is oral rehydration salts. The sodium and glucose combined, when added to water, makes it so that the child is able to absorb the water during situations of diarrhea.

Explanation:

hope i helped :) !

1. i forgot 2. he was gay 3. they killed a lot of the population 6. they rode horses and had swords we have guns and tanks

um is there supposed to be choices?