Question

what is the motion of the earth and why it is tilted​

Answer 1

rotation rotation and revolution are two motions of the earth.

whenwhen earth spins aur rotates around its Axis that moment of spinning is called rotation of earth and Earth spins or revolve around the sun that moment is for evolution of Earth.

That's logic but not the case for earth instead earth has seasons because our planet's axis or rotation is tilted at an angle of 23.5 degrees related to our orbital plane – the plane of Earth's orbit around the sun . The tilt in the axis of earth is called obliquity by scientists.