Human consumption description

Human consumption means ingestion or absorption of water or water vapor by humans as the result of drinking, cooking, dishwashing, handwashing, bathing, showering, or oral hygiene, or other domestic uses such as flushing toilets or doing laundry.

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.

"d.) carbon dioxide and hydrogen sulfide"