<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>
Oxygen-16 atomic number is 8 so it has 8 protons. Its atomic weight is 16 so 16-8 = 8 neutrons.
Because we have carbon in the ground in the air and every were else
How do rivers become larger as they travel across land?
Tributaries combine, adding water to rivers.
A tributary is a stream that flows into a larger river. Small streams from around an area combine together to form a bigger tributary that eventually falls into rivers. This adds water to the main river, finally leading this river water out into an ocean.
