What geographic features did ancient cultural hearths share?

A habitable climatic zone, the proximity of large river basins and geographical isolation from other regions of the world by mountains, deserts or seas are all things they had in common.

Explanation:

Most were valleys and all of them are places in a more hidden area from people in regions from deserts, seas, overseas and practically anyone and etc.

~kinetic ~potential

explanation:

kinetic and potential energies would be types of mechanical energies.

answer; adoption agencies tend to place separated twins in similar homes;