Explain why a simple process like "dumpster diving" can be so effective when gathering information utilizing social engineering?

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.

Arecent challenge to the european union created by a member state is?

Surfaces of paintings—such as paper, canvas, and pottery—are referred to technically as