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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
This category has the following 2 subcategories, out of 2 total.
Pages in category "Coltan conservation"
The following 3 pages are in this category, out of 3 total.