Because moonlight is reflected sunlight, some of the moon is in shadow and cannot be seen from our viewpoint
The whole moon is there, but we only see the parts illuminated by the sun. We don't normally see the parts of the moon that are in deep shadow.
Yes.
A whole moon it's that simple
You see just that part of the moon that the sun is shinning on.
No. When you see the whole sun-lit side, you call it a "Full Moon".
You can see one side of the moon, but not the whole, entire thing.
yes
Are you posable talking about a Full Moon?
When the Moon is the opposite side of the Earth to the Sun.
You don't see the whole side of the moon because the bright side of the moon is a "reflection" of the sun.
you have to be near the moon
You can not see the whole moon every day or (night). The moon does not shrink, or disappear. It is just the place and angle you are at, because you can not see it.