Refining Design Quick Check ?

I don't see anything to check.

1.A, the science and technology of metals, including its properties, extraction, and uses
2.D,iron plus vanadium for shock absorption
3.B,to minimize emissions during smelting
4.D,wiring
5.C,rock from mining that contains a valuable mineral

Dr. Bob quite frankly everyone has had enough of this tomfoolery.

Pickle is 100% correct!!! :)

Pickles is correct