If something is logically proven true does that mean that it is true in reality

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.

Which of these describes the most important popular jobs in the new england colonies

The u. s. intervened in korea and vietnam to stop the spread of