You will be given a definition of a task first, then some input of the task.
In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Question: When Dan went to the beach, he found rocks that had been eroded. Some rocks were hardly weathered though, so those must have a resistance that is 
 Answer: higher
Output:
Different types of rocks weather at different rates. More resistant types of rocks will remain longer.