Physics, 06.10.2019 00:50 anglacx5465

How much ancient plant debris is necesary to form one foot of coal a. one foot of plant debris b. ten feet of plant debris c.50 feet of plant debris d. one hundred feet of plant debris.

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Physics, 22.06.2019 00:30, Solany6426

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Physics, 22.06.2019 00:30, WorkingButNotReally

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How much ancient plant debris is necesary to form one foot of coal a. one foot of plant debris b. te...