Question

Which objects are not moving on their own? Why?

Answer 1

The Equator is another of the Earth's great circles. If you were to cut into the Earth right on its Equator, you'd have two equal halves: the Northern and Southern Hemispheres. The Equator is the only east-west line that is a greatcircle. All other parallels (lines of latitude) get smaller as you get near the poles.

Answer 2

From Newton’s first law of motion, In an inertial frame of reference, an object remains at rest unless it is acted upon by a force.

So, we always find that objects come under our vision iseither moving or at rest.

There is however no definite, legible inertial reference frame for comparison of relative motion or state of rest.

Soinertial reference frames determines the relativity to which any object is moving or at state of rest.

In other words, there are no objects that are not moving.