<u>The lunar phases are produced as a result of the change of the relative positions of the Earth, the Moon and the Sun</u>.
<u>The part of the lunar surface illuminated by the Sun that we can see from the Earth</u>, <u><em>is changing throughout a cycle that is repeated periodically every 29 days, 12 hours, 43 minutes and 12 seconds</em></u>.
<em><u>The answer is</u></em>: <u>B) Earth that revolving around the sun and the sun's light being reflected off the moon.</u>
The correct answer is: [B]: "beneficial" . ______________________________________________________ {<u>Note:</u> A symbiotic relationship known as "mutualism" — in which both organisms benefit.}. ______________________________________________________
