No. Magnetism has nothing to do with it. It's strictly the result of gravity.
the earths orbit because the earths orbit is the size of earth + the size of the moon
No. The moon's orbit around the earth is.
There are two things that cause it which are the earths orbit and thetilt of the earths axis.
Climate
Moon and earth distance
Actually, it doesn't. The TILT of the Earth on it axis causes seasonal changes.
yes
no. the earths orbit cause the seasons
no. the earths orbit cause the seasons
No. Earth orbits the sun, not the other way around. Earth's orbit depends on the mass of the sun, not Earth's rotation. Earth's rotation does, however, give the appearance that celestial objects revolve around it.
Neptune is the outermost planet, and is farthest from Earth's orbit.
No. They orbit Earth; and the reason they orbit is because of gravity.