There's the evidence that things do happen naturally.
There is certainly evidence for Cause and Effect Theory.
That is the basis for this necessary and required Axiom of Science.
It's the basic Hypothesis which Science has ever since sought to support with more and more examples of a Cause/Effect relationship for everything.
It is essentially the philosophy of Science itself, and the very work of science to continue ti find the Causes to things previously assumed to be super natural.
It is the basic Tenet of Science, in fact.
However, Science has had to postulate that Cause/Effect does not include a First Cause.
At least that one Postulate is required before Science even begin to find one example after another to debunk what otherwise would be magic.
Every discipline known to man requires that some basic tenet be accepted upon faith in the common sense of it, or that discipline can not even proceed on its face.
Geometry requires eight foundational Axioms before any geometric "proof" of anything is possible/
Mathematics requires that one accept on faith the 12 Field Postulates.
And Science requires at least we ignore a First Cause, one which is, De facto, The Creator of the material universe.
Evolution requires we begin only after we accept a Natural Process can be assumed for the very first of the Life which Evolution will explain thereafter.
Edited by kofh2u, : No reason given.