If Evolution by natural processes from “amoeba” to man is possible, as Evolutionists maintain, it would undoubtedly require billions of years to accomplish. A younger universe would make Evolution even more impossible.
Some age estimation methods seem to indicate Earth is extremely old. Many other processes appear to indicate it is much younger.
There is no scientific method that can positively prove Earth is very old—or relatively young. Absolute proof of an old Earth would require billions of years of on-site measurements and observations.