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...Environmental science stem based boy scouts of america merit badge series enhancing our youths competitive edge through badges make a time line the history in identify contribution made by to include dates names people or organizations and important events define following terms population community ecosystem biosphere symbiosis niche habitat conservation threatened species endangered extinction pollution prevention brownfield ozone watershed airshed nonpoint source hybrid vehicle fuel cell do one activity from seven categories using activities this pamphlet as basis for planning projects ecology conduct an experiment find out how living things respond changes their environments discuss your observations with counselor illustrating greenhouse effect keep journal data conclusions what is tell it maintained nature survives b air perform test particulates that contribute findings record trips taken mileage consumption family car days calculate many miles per gallon gets determine whether ...