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People Who Live in Gas Houses The Greenhouse Effect
Mouse or Monster The Automobile as a Contribution
To Weed or Not to Weed
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acid activities agricultural amount animals anti antibacterial antibiotics atmosphere autointoxication bacteria biological biotics birth control birth control agents bufotenine capita carbon dioxide carbon monoxide cause cells cent chemical chemistry chlorine chromosomes compound consumption contraceptive cost crop cycle defective gene degradation detergents DMPEA drugs ecological economic ecosystem emissions energy engine environment environmental impact index enzyme example factor fertilizer Figure fuel genetic growth hemoglobin herbicide human hydrocarbons increased infections inherited diseases insecticides laboratory Lesch-Nyhan Syndrome levels malaria male contraceptive mental illness mercury methoxychlor million neomycin normal organisms oxides of nitrogen PCV valve penicillin pesticides pill plant pollution population possible problem production protein PSAC radiation rauwolfia recent reserpine residues resistant result schizophrenia Science scientific scientists side effects soil specific spraying studies substance surface waters synthesis synthetic Table temperature tion tons toxic United weeds