Look I don’t really understand this but can anybody help me out or tell me what to do like explain Thank you

What group has historically made up the largest portion of immigrants in mexico?

All of the following came out of china and were exchanged along the silk road, except a. papermaking b. block printing c. buddhism d. compasses select the best answer from the choices provided a b c d

Which topic would a meteorologist most likely research? -meteors in space -marine ecosystems -atmospheric conditions -the runoff of stream systems