During the mississippian period, many native american groups set up large fields where they primarily grew a) rice. b) maize. c) cotton. d) soybeans.

24-karat gold is considered to be pure gold. 18-karat gold is considered to be about 75% gold. what is 18-karat gold considered a mixture rather than a pure substance? a) it has a variable composition of other elements and minerals. b) its color is different than pure gold. c) the gold atoms are not arranged in a repeating pattern. d) it can be melted and transformed into a different substance.

Open opinion / / / should juveniles spend life in prison? why? or why not?

What happens after a star goes supernova? just wondering! [tex]supernova [/tex] answer asap i really wanna know!