7. which of the following is true?

plants have adaptations that minimize light absorption.

plants require less water on sunny days.

most plants get the water they need from the soil.

plants take carbon dioxide from the atmosphere and do not use oxygen.

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.