That depends on why they believe those things but general terms that may apply include atheist, pragmatist, materialist and skeptic.
Everything but gods and supernatural superstition.
Probably in tidal pools.
Not as long as life exists.
A person who believes there is no God is an Atheist, BUT one can still believe in evolution and believe in God. One way of believing both of these is that God still chose when and how each species would evolve and that before Adam and Eve evolved that He gave them a soul.
None exists.
Spiritual aspect, is about how you communicate to God, and believing that God exists.
materialism
Spiritual aspect, is about how you communicate to God, and believing that God exists.
He doesn't
Some problems are unstructured in that similar problems have not occurred before and no ready routine exists for problem solving. Other problems have occurred routinely and a decision process exists for the problem.
If you believe in God, there a many events that can help you to continue believing he is there. The miracle of birth and life is a major sign that God exists to many people.
One word: extinction. As long as life exists, organisms will reproduce with variation - which means per definition that evolution will occur. The only way for evolution to stop happening is for life to cease existing.