Explanation:

The Earth completes one “rotation” every twenty four  hours.  A  rotation  is  when the planet spins around once. The Earth rotates counter-clockwise; this    is why the Sun “rises” in the east and “sets” in the west. Revolution is when   one object completes a circular path around another object. The Earth takes 365.24 days to revolve around the Sun. This is why a year is 365 days long. During the year the Earth is angled differently towards the Sun.  These  changing angles provide us with different Sun intensities and therefore we get four different seasons.