Answer:
Based on your lesson on the rock cycle, you agree with her; diamonds are valuable, but there are other minerals that are used in industry that have a high value as well.
Step-by-step explanation:
The rock cycle is a fundamental geology concept that explains how rock undergo transitions through geologic times. In this lesson, you get to understand rocks and how valuable they are. Hence if a classmate states that only precious minerals such as diamonds are valuable, my response will be to concur with her that diamonds are actually valuable, but there are other valuable minerals also used in many industries as well.