Please answer the following question: Question: Karl is trying to light a match on his pant legs with very little success. He finds a piece of rough leather to strike the match against and the match lights up in no time. Which surface provides more friction for heat? (A) PANT LEG (B) ROUGH LEATHER Do not use A and B to answer the question but instead, choose between "pant leg" and "rough leather".
Answer:
rough leather