4. Americans have a right to free speech, found in the First Amendment, allowing them to express their opinions in public.
I this multiculturalism, assimilation or pluralism?

I might say pluralism but it could be multiculturalism

Explanation:

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.