Sounds like a baker's competition for a high school anime. I hope you have fun! lol XP
You should do missing assignments and extra credit
to explain is when you try to make people understand and persuading is to tell something that you sure about
3D printing is incredibly resource efficient since the only material consumed is what passes under the laser (or through the extruder, etc.), whereas traditional manufacturing requires the use of extra materials (molds for injection molding, scraps for perforated sheet metal assembly, etc.)