Is there a series of rigid transformations that could map ΔRST to ΔXYT? If so, which transformations could be used?

What is associated with mid-ocean ridges?

One of the main reasons societies settled along rivers in the neolithic era was because a) the village elders demanded it. b) the land there was more valuable. c) it was more safe and secure there. d) it provided irrigation for farming.

Witch religion first gained poularity as a part of roman empire in the 4th century