What is a subordinating conjunction and how do I find it?

Your school is considering adopting a policy that requires all students to complete 100 hours of community service during there high school careers in order to graduate. the district asked for student input at the next school board meeting as to whether or not they should adopt this policy. research the topic, decide whether you are in favor of or against the new policy, and write a five-paragraph persuasive speech that you will deliver to the school board members and your principle need answer for my