Each of the following is a type of RNA except carrier RNA.
messenger RNA.
ribosomal RNA.
transfer RNA.

Carrier RNA

Explanation:

Messenger RNA carries the DNA code and forms amino acids, which forms the proteins in our body.

Ribosomal RNA forms our ribosomes with proteins.

Transfer RNA decodes messenger RNA into protein.

Carrier RNA is not a type of RNA, but carrier DNA does exist.

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.