We don't need to argue in detail the diameter of the earth. It is assumed that literate people know this.
Literate people, especially those attempting to change the teaching policies of schools, better know the evidence that supports evolution. If you don't know it you can't argue against it.
Now this argument is rather long, and every time we post it, we are accused of spamming the threads.
But wait, may be Narby can distill it for me.