Question

Why does the moon appear at each time?​

Answer 1

Explanation:

Moon phases

To grasp why the Moon's appearance changes, we need to bring in the Sun. Like the planets, we only see the Moon because it reflects the Sun's light. And just as we have half the planet lit and the other in darkness at any one time, the Sun is always shining on half the Moon.

Hope its help..

Answer 2

Answer:

Moon appear due to it's rotation around the earth and light of sun

Explanation:

Being earth's natural satellite, moon keeps rotating around the earth. But also, being a planet, moon doesn't have its own light and can't be seen naturally due to darkness. But, it has a slightly white surface texture that has tendency to reflect Sun's light. So, whenever moon rotates around the earth, it comes to our visual range and due to reflection of Sun's light from it's surface, moon can be seen.