A friend of yours has recently grown a beard. When you encounter him, you realize at once that something about his face has changed, but you are not certain what has changed. We can conclude from this that

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.

Why is corruption not effectively reduced in nepal

What are some examples of native americans were impacted by colonization in america