One of the biggest "proofs" for evolution is alleged to be the sedimentation layers and the fossils they contain. Species are said to evolve from one to the other. But for all the fossils they have, all the various species by themselves, there are -no- 'transition' fossils. You have been sending your friend to Answers in Genesis. One of their speakers was in the area about a year ago, and I went to hear him. He showed a chart of all the various species and generational "trees". I'm sure you've seen them, too? But he made a big deal of a glaring omission. A "missing link". Absolutely NO EVIDENCE of any 'transitional' phases in the fossil records. A fish is always a fish, a mammal always a mammal, a bird always a bird, etc. Absolutely no fossil evidence of 'hybrids'.
If you've read any of the 'technical' stuff at AiG (they have a lot of writers that produce a lot of stuff I don't understand), you've likely seen how "carbon dating" is also a flawed dating method. The very most that TRUE SCIENCE has been able to count backwards through all their testing methods, is about 10,000 years.