HELP ASAP! WILL GIVE BRAINLIEST! I AM DOING FINAL EXAMS, PLEASE HELP!

Why does Earth have day and night?

A.) Earth revolves around the sun.

B.) Earth rotates on its axis.

C.) Earth's axis is tilted.

D.) The moon revolves around Earth.

Thank you!

Why do you think water is so important to living things

About __ of the mass of the cell is water

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.