Copper wire is not an example of a pure element because although it's made by pure elements, it's not one itself. It's made by factories.
Have a nice day! :)
Lead<span> (/lɛd/) is a chemical </span>element<span> in the carbon </span>group<span> with symbol Pb (from Latin: plumbum) and atomic </span>number<span> 82.
~ I don't know if this will help, but I hope it does. ~</span>
Growth rate calculations and their conclusions can be used in biomedical contexts when organisms are being grown for the synthesis of compounds or other purposes.