the time it takes the earth to spin around on its axis
The length of a day is primarily controlled by the rotation of the Earth on its axis. The Earth takes approximately 24 hours to complete one full rotation, which determines the length of a day. Variations in the Earth's rotation speed can result in minor changes in the length of a day.
the length of day on earth is 24 hours
The Earth's revolution around the Sun determines the length of the year and the changing seasons. The angle of tilt (23.5 degrees) causes different parts of the Earth to receive varying amounts of sunlight, leading to the seasonal changes.
The length of night and day depends on how fast a body like Earth is spinning. Of curse, the body's tilt with respect to its star - Sun in Earth's case - continually alters the lengths of days and nights according to the 4 seasons.
the time it takes the earth to spin around on its axis
spinning
The rotation of the earth causes night and day.
How long it spins on it's axis
Mars
The earth day is Approximately 24 hours in Length.
The moon affects how fast the Earth moves by the tides. If the moon disappeared the days would shorten dramatically (6 hours long). The speed of the Earth would cause more natural disasters because it was moving so fast. Life on Earth would not be what it is today without the moon!
The length of a "day" on the moon is 29 Earth days.