Which organ systems are used to the body shiver?
a.) circulatory and respiratory
b.) nervous and muscular
c.) circulatory and muscular
d.) respiratory and nervous

answer:

explanation:

here is the correct 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.

yes

no

blue is scattered more than other colors because it travels as shorter, smaller waves. this is why we see a blue sky most of the time.