Amino acid is to protein as: A.) fat is to lipid
B.) DNA is to RNA
C.) sugar is to fat
D.) glucose is to carbohydrate

I think the answer is D :)

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.