when a persin uses a iron to remove the wrinkes from a shirt. why does the heat travle from the iron to the shirt

the iron is in a contact with a shirt.

weathering is the answer.

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.