Planet a is an inner planet with no moon and hardly any atmosphere. planet b is an inner planet with no moon but with a dense atmosphere. which pair of planets is being described?

Planet A is Mercury and planet B is Venus.

Explanation:

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.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects