The differences between rotation and revolution of the Earth are as follows:

The direct rays of the sun fall on the equator on 21st March and 23rd September. The whole Earth experiences equal days and equal nights because neither of the poles is tilted towards the sun. This is called an equinox.

The comparison between axis and orbit is as follow:
Axis The axis of the Earth is an imaginary line which joins North Pole to South Pole and makes an angle of 66 1/2°. with its orbital plane.
Orbit The Earth moves around the sun in a path which is called orbit and it is an elliptical path.

It is because the rays of the sun are slanting due to the Earth's inclined position and movement of the Earth. The Earth is spherical in shape, so only half of it gets light from the sun at a same time. The portion facing sun experiences day while other portion experiences night.

The North Pole remains inclined towards the sun for six months due to which places beyond the Arctic circle experience continuous daylight for about six months while South Pole remains away from the sun for six months and experiences night for same period. The same condition reverses for the next six months when South Pole inclines towards the sun and experiences day while North Pole experiences night

Summer Solstice The days are longer with shorter nights in Northern hemisphere in summer while the conditions are reversed in the Southern hemisphere. This position of the Earth is called the summer solstice.
Winter Solstice The Southern hemisphere experiences summer and it is winter in Northern hemisphere. The days are longer with shorter night in Southern Hemisphere. This position of the Earth is called the winter solstice.

The movement of the Earth on its axis around the sun takes 365 days and 6 hours. We ignore six hours for the sake of convenience and consider a year consisting of 365 days. Saved six hours are added to make a day (24 hours) over span of four years. This surplus day is added to the month of February and in every fourth year, February is of 29 days in spite of 28 days. The year with 366 days is called a leap year.

The Earth rotates from West to East on its axis. The Earth takes about 24 hours to complete one rotation around its axis. The period of rotation is known as the earthday. The spherical shape of the Earth allows only one half of the Earth to receive sunlight at a time.
The portion facing the sun experiences day, while the other half away from the sun experiences night. It is because of the rotation of the Earth that allows day and night following each other regularly.