Need asap i am falling behind but i only have 2 hour a day at school and don't have internet at home and have been sick 7 times scene the month of august

answer:

one lunar side always faces earth, or is tidally locked, because the moon's rotation and orbit is closely synced-up with our planet's. the moon spins about its axis and orbits the sun with earth, so its night or "dark" side is constantly moving

explanation:

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."