Read the introduction of a speech given by a school principal. earth day will be celebrated in over one hundred countries across the world next week. students of pine grove high can show their compassion for the earth by leaving cars at home and electronics unplugged for the day. even small gestures can make a big difference! the attendance boundaries for our school span a fifteen-mile radius, but designated drop zones have been established for earth day. you can carpool to the drop zones and walk the remaining distance to reduce energy consumption. crossing guards and town police will ensure the event runs smoothly. there will be a welcoming party to celebrate walkers, and a local berry farm will be supplying fruit smoothies. the author’s purpose of this speech is to inform listeners about the history of earth day. inform listeners about pine grove high’s boundaries. persuade listeners to participate in an earth day event. persuade listeners of the threat of an energy crisis.