Think about the force that exists between the moon and Earth. What do you think causes the water on Earth's surface to "bulge" toward the moon? sorry there's no astronomy tag! 20 points and brainliest towards best :)

answer; ///(b) it is composed of four protein chains and four heme groups;

one centimetre is equal to 0.01 metres

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds

is this a question? wassup