Search for tag: "pollution"

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02:31 2015 Chemistry Magic Show - Acid Base Indicator 2015 Chemistry Magic Show - Acid Base Indicator	2015 Chemistry Magic Show - Acid Base Indicator chemical element non metals climate ghg emissions carbon dioxide greenhouse effect acids (chemistry)2015 weather temperature (weather)pollution air pollution climate change chemistry public chemistry magic show caption complete From Greg.Allison A year ago 0 0
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18:29 Classification Classification	Classification Worker Health and Safety Awareness Training: Classification. disasters & accidents classification paint (coating)acids (chemistry)environmental pollutants and hazardous materials fall 2014 caption complete environmental health and safety poisons and poisonous substances ehs unconsciousness environmental hazards flammable substances fire propane life threat chlorine training bombings and missiles worker health and safety hazardous substances pollution From frank.heney A year ago 3,669 0
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01:42 MARIANNA Favourite books MARIANNA Favourite books	MARIANNA Favourite books disasters & accidents summer 2015 marianna leicester united states of america favourite books schools literature developed markets economies investment caption complete brazil sociology slals journals & magazines finance africa education and upbringing portuguese east midlands mike barker leicestershire pollution From Michael Barker A year ago 0 0