And the waters prevailed so mightily on the earth that all the high mountains under the whole heaven were covered.
Genesis 7:19 ESV
fossil, and the world is covered with billions of them in mass graves. Creatures must be buried rapidly before they rot or get eaten by scavengers. And, in fact, vast numbers of animals were buried and fossilized so quickly that some could not even finish swallowing their meal or giving birth.
2- Another obvious evidence that makes sense in a global flood is
fossils of tree trunks standing upright or upside down through more than
one layer. This doesn’t make sense with the slow accumulation of layers
over millions of years, but instead it is a sign that these polystrate
fossils were buried rapidly.
3- Another obvious example, which tourists can visit around the 
world, is
rock layers that were deposited around the globe at the same time. This
is consistent with the Genesis account of a worldwide, versus a
regional, catastrophe. For example, the Tapeats Sandstone, which sits on
the basement rocks of Grand Canyon (Arizona), also appears far away in
Wisconsin and across the ocean in Israel and Libya (under different
names). How could a local flood deposit the same rock layer across
multiple continents?
4- You can go to many places on the planet and see row upon row of
consecutively deposited rock layers that were soft when deposited and
then bent, sometimes drastically. The whole series shows no signs of
fracturing. Obviously, hard rocks do not bend without breaking. A better
explanation is that the flood laid these layers rapidly, and they were
bent before they could dry out and harden." AIG
