Nonsense of Noah
The amount of water required to "cover the mountains" is an impossible volume without a miracle.
There is no source of sufficient water to produce a world-wide flood that "covered the highest mountains".
Even if it did happen, the "highest mountains" would be above 29,000 feet (Mt Everest). Noah's ship would have been at that height. At 29,000 feet there is no oxygen and the temperature is below -44 degrees, that's MINUS 44 degrees.
Even if it did happen, there is no place to which the flood waters could subside.
The mountains were covered. That means Mt Everest at 29,000 feet; water, six miles deep covered the earth.
That's six inches of solid rain water per minute without end for 40 days.
However, some of the water came from the "fountains of the great deep".
Want to dispute that? OK, We do know that the water was over 9000 feet deep because the Ark landed on Mt Ararat.
Just Curious:Since the water was a combination of salt water and fresh water, how did ANY fish survive?
WHERE DID ALL THE WATER GO?
Evaporated into the atmosphere?
Think again. That would create an atmospheric pressure of over 1000 pounds/square inch.
Receded back into the cavern in the earth that held "the fountains of the great deep"?
Well, where is that huge underground cavern now?
Don't say it's the ocean because the oceans were there when the waters were on the earth; i.e. there was no ocean void into which the waters could have receded.
BIG PROBLEM WITH CORAL
All of the coral in the great coral reefs would have been killed since coral dies at depths greater than 250 ft.
This means that all the existant coral would have to have been created since the flood.
Coral grows at the rate of .1 - 1.0 inch per year.
A drilling went to the depth of 1380 meters (almost ninetenths of a mile!) before reaching the lava lip of the volcano underlying Eniwetok atoll.
It would take approximately 130,000 years for that much coral to accumulate.
See for a complete discussion of the growth rates of coral.