Tides happen twice a month cause the coriolis effect are driven by earth's rotation are caused by the moon's gravity

The alternating rise and fall in sea level with respect to the land, are called tides. They are produced by the gravitational attraction of the moon and the sun. Every day, there are 2 high and 2 low tides. The water is constantly moving because the moon pulls at it.

Question: Tides .

D.  are caused by the moon's gravity

answer; i believe that the correct answer is ; the eastern and western churches spoke different languages;

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."