Nothing out of the ordinary; it's been doing so for billions of years. One revolution is one year.
The four seasons occur Spring, Fall, Summer, and Winter.
The Earth revolves around the Sun in a slightly elliptical orbit, moving in a counter-clockwise direction when viewed from the celestial north.
Yes it do.
Technically, the earth and sun both revolve around their common center of mass ... the place where the pivot would be if the sun and earth were on opposite ends of a see-saw. But since the sun is so...
The earth is smaller than the sun.