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“One metric ton of ore/rock/sand/soil has 11/30 metric tons of CO2, 1/9 kilograms of Dy, 880/3...Ore, rock, sand, soil
“Take a shower: Taking a shower uses about 1/5 of the energy as taking a bath, and as long as you...How to reduce your carbon footprint
“Coal is a combustible black or dark brown rock consisting mainly of carbonized plant matter...Coal
“Recycling one gallon of motor oil can save 1,000,000 gallons of water pollution, 4 acres of land...Oil recycling
“This is a placeholder page for an article about carbon dioxide. The article should present...Carbon dioxide
“Sick building syndrome occurs when several people are affected, but no specific source of the...Indoor Air Pollution
This category has the following 6 subcategories, out of 6 total.
Pages in category "Salt conservation"
The following 76 pages are in this category, out of 76 total.