Answer:
The process of metal refining is done for the purpose of fixing the metals impurities through the reduction process. ... Metal refining produces refined metals but the main downside of this process is the production of too much waste after.

The primary source of energy in a food chain is Sun, because producers are the ones that prepare food by themselves and that food is then passed on to higher levels in food chains. And as the producers make their from Sunlight, the primary source of energy in food chain is <u>Sunlight</u> .
Answer:
Perspiration
Explanation:
If you had options that could have helped but I think perspiration is the correct answer.
Hope this helps :D
Protein primary structure is the linear sequence of amino acids in a peptide or protein. By convention, the primary structure of a protein is reported starting from the amino-terminal (N) end to the carboxyl-terminal (C) end. Protein biosynthesis is most commonly performed by ribosomes in cells.
Answer:
False
Explanation:
Two or more elements combine to forma COMPOUND.