Yes!
No, it never disappears, but it sometimes doesn't get any sunlight to reflect to the earth from the sun and that's why sometimes it doesn't appear some nights but otherwise it is always there.
yes
about 28 days. This happens roughly every month. (month -> moon)
The moon orbits the earth about once every month, thus each phase of the moon - full moon, new moon, waning half moon, waxing half moon, etc. - occurs about once each month. It's not exact - the moon takes about 28 days and most months are longer than that by a few days.
The moon goes around the earth once in just over 27 days. So if the moon is between us and the sun (a "new moon") in ~27 days we'll have another new moon. So the moon takes about one month to make a full orbit. Thus the origin of the term "month" as essentially a shortening of "moon-th"
yes the moon does disappear on certain days of the month The moon doesn't really disappear you just cant see it :)
The answer to this riddle is the face of the moon. It "disappears" before it is a month old and has been around for a long time.
No, it never disappears, but it sometimes doesn't get any sunlight to reflect to the earth from the sun and that's why sometimes it doesn't appear some nights but otherwise it is always there.
The number of days in a month are determined by the cycles of the moon.
It takes the moon 29 days or about 1 month to orbit the earth.
A sidereal month is the time it takes the moon to circle the Earth with respect to the stars (27 days), A lunar month is the time it takes from full moon to full moon (29 days).
yes
One cycle of the phases of the moon takes 29.53 days. Originally, a month meant a moon cycle.
The name month was related in ancient times with the 28-day cycles of the moon. People counted days in relation to the phases of the moon: new moon, half moon, full moon.
the length of the moon's rotation is 27.3 days (about 1 month)
about 28 days. This happens roughly every month. (month -> moon)
27