Anyway, so however the universe came to be, let's talk about what happened afterwards...
so Evolutionists believe that somehow, from the bunch of chemicals and other junk floating around, a single-celled organism came to life (keep in mind that in all these years of brilliant modern science, one thing that scientists can't do is to create life. And shouldn't modern science be more advanced than a bunch of chemicals floating around?).
So this single-celled organism somehow survived the much harsher conditions of the Earth at the time (since the Earth, after the Big Bang was still boiling hot / covered with water... btw water has these exact properties that enable it to support life, but that i'll get to later) and then decided to evolve... so let's say that it decided that instead of living in the water, it wanted to walk on the land.
So after millions of years of trying (remember that the single-celled organism is still alive after all this time, even though the Earth was in chaos at the time... so that means there were no major incidents that would cause everything to be destroyed, right?), it manages to sprout legs (and survive on the land, which is, remember, boiling hot).
Now this organism doesn't need food or anything else to sustain it, because... yeah, just because dammit! After it makes these changes to its body, it also decides that it needs to reproduce, so that just incase it dies, there's another organism just like it, with all changes and evolution intact. Through the magical process called evolution, this happens, and suddenly there's two of them. One of them decides that he wants to become even more advanced, so he grows two more legs and becomes the first four-legged animal. (Mind you, throughout all this evolution, there were zero threats to the creatures...no fire, no meteorites, nothing to harm them)... and this process goes on and on, some of them decide they want to be plants, some of them want to be monkeys...*skip forward millions of years*...eventually they become humans...
Do you see where this is going? My point is, I hardly believe that all these changes could have been made and preserved, without a major extinction (caused by drought, fire, etc.) happening in those millions of years...