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Carbon Sinks and Sources - tigurl.org
www.tigurl.orgCarbon Sinks and Sources Like all of the essential elements that make life on the planet possible, carbon, in the form of carbon dioxide and methane, is
Salt Water vs. Fresh Water - tigurl.org
www.tigurl.orgName: WWF-Canada Schools for a Living Planet Presented by Canon Canada Inc. GR8 SC A1 1 Salt Water vs. Fresh Water We know that fresh water, unlike salt water…