Chapter 13 – Living in the Environment/ 12th ed
About 97.4% by volume is found in the oceans and is too salty for drinking, irrigation or industry (except as a coolant). ... and a German paper plant nearby eliminated water use by completely recycling and purifying its water. Manufacturing aluminum from recycled scrap rather than virgin ore can reduce water needs by 97%. ... Old Inca Proverb. ................
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