Question

gold is made up of...

Answer 1

usually silver, copper, zinc, nickel, etc. are mixed in),  to make it strong

Answer 2

HEY MATE

One karat is 1/24 part (by weight) pure gold, so pure gold is 24 karats. Many products use various gold alloys for various reasons, but most do because the alloys are cheaper (usually silver, copper, zinc, nickel, etc. are mixed in), but sometimes gold is alloyed to make it a stronger and less malleable material.

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