How Long Can Ancient Ruins Survive Leaving Traces Of Their Existence Archeologists Can Find

Could a non-human civilization have existed on planet Earth millions of years before humankind?

It is possible. However, assumedly some artifacts created by such a civilization should have appeared somewhere in the archeological record.  Then again, absolutely no one knew about and no record existed anywhere to indicate that Gobekli Tepe, Turkey existed either. So if a 12,000 year old civilization can be completely lost to the world, it seems logical to assume any civilization could also be lost as well.  There has been speculation that a reptile species related to the velociraptors was well on its way to intelligence. Such a species might have developed an advanced civilization 80 million years ago, had a nuclear war  or a biological event and gone totally extinct.   Tectonic movement, climate change and weathering could very well have eliminated all traces of this civilization. All of which is either under water, deep beneath the Earth or subsumed back into the mantle.   If traces of this civilization were ever to be found, it would be in coal mines or deep earth deposits. A form of "battery" was believed to have been discovered embedded in a coal mine a few years back. How it got there is still a mystery.

Is there any mention of Moses in Ancient Egypt hieroglyphics?

There is a common misconception that the Israelites were in Egypt for over four hundred years, that Moses led them out of Egypt and that there was an epic Exodus that ended with the conquest of Canaan.We have extensive records from Egypt throughout the Late Bronze Age, both in the form of official and commercial documents and records, so we ought to be able to find evidence that the Israelite people were held captive or evidence of the plagues, theft of large quantities of jewellery and other valuables, escape of over two million slaves (or even a smaller and more plausible but still substantial number) and the destruction of an entire army in pursuit. There is no such evidence. Some say that is probably because the Egyptians would not have recorded a humiliating loss, but archaeologists have scoured the social and commercial records of the Late Bronze Age, and found nothing.Indirect evidence for Moses would be archaeological evidence of a conquest of the Canaanite cities towards the end of the Late Bronze Age, but there is none. Several cities mentioned in the Book of Joshua, such as Jericho and Ai, had already been abandoned long before the Israelite conquest purportedly occurred. With no conquest, there could not have been a biblical Exodus, and with no Exodus there could not have been a biblical Moses.The only evidence we have of Moses is in the Bible, where it has all the hallmarks of myth. Perhaps to improve the credibility of the story of the Exodus from Egypt, the Pentateuch books were eventually attributed to Moses, although they were clearly written by multiple authors living at much later times than Moses would have done.Some historians accept that the legend of Moses and the Exodus could have a core of truth if that is based on just a small band of escaping slaves, because the ancient Egyptian writings say that the Midianites worshipped a storm God they called YHW — a name very similar to the Hebrew God YHWH. They suggest that the escapees could have been saved from death in the Sinai desert by the Midianites, who introduced them to the Midianite god YHW. When the escaping slaves had recovered, they could have taken news of YHW with them as they made their way north, to return to their compatriots in Judah. Was one of these slaves called Moses? We will probably never know.