Step-by-step explanation:
It is so important because of the different animals from places on earth are all together in one place it give a good evidence of world wide flood.
Catastrophism is the idea that now the World has been greatly influenced by abrupt, short-lived, horrific events, probably of magnitude worldwide. This compares with uniformitarianism (sometimes defined as gradualism), in which slow incremental changes, such as erosion, produced all the geological features of the Earth.