Why does it take longer in cooler weather for a house flies eggs to mature

a chair, a bed, and a toothbrush

explanation:

i was told this before by a teacher, so yeah

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.