because when the earth spins on it's axis the sun hits it but as it moves there would be light and dark at different times. When it is dark it is night and when it is light it is day. I hope it helped you
The earths orbit around the sun is almost circular.
about 16 minutes and 40 seconds
No. An A.U. is the average radius of the Earths orbit around the Sun. (which can be measured in light years or light minutes (about 8) if you want).
Orbit
No. The moon's orbit around the earth is.
no
Orbit
Yes.
The annual orbit of Earth around the sun is known as a year.
The Earth's journey around the sun is called its orbit.
The Earth's orbit is almost circular. Technically, the "eccentricity" of the orbit is about 0.0167.
It takes about 997.186 seconds for light to travel across the diameter of Earth's orbit.