Geological formation and Physical object

Geological formation noun - (geology) the geological features of the earth.

Physical object and geological formation are semantically related. In some cases you can use "Physical object" instead a noun phrase "Geological formation".

Physical object noun - A tangible and visible entity; an entity that can cast a shadow.

Geological formation and physical object are semantically related. Sometimes you can replace phrase "Geological formation" with "Physical object", this phrases are similar.