Biodegradable (adj) = describing something that can naturally “breakdown” and not cause pollution
Vending machine (N) = a machine that sells small item when coins are inserted
Carpool (N) = an arrangement between a group of people to share a ride together in one car
Carbon footprint (Noun phase) = the amount of carbon dioxide released into the atmosphere as a result of one’s actions
Carbon neutral = reaching a balance between the amount of carbon dioxide one produces and the ways that one can reduce carbon dioxide emissions