the answer will be intresting ,because the answer shows the no of
recycal of living beings
2006-09-28 16:26:14 · 3 answers · asked by truedream 1 in Science & Mathematics ➔ Earth Sciences & Geology
Coal seams are varied in size and location. There are countless coal seems ranging in age from about 400 million years old to recent. There are certain time periods (like the Carboniferous) and depositional environments (delta, swamp) in which they are more common. If fact, in deltas, you can have dozens of coal seams in one outcrop a few meters high.
So, to answer your question, billions and billions.
2006-09-29 04:12:06 · answer #1 · answered by QFL 24-7 6 · 0⤊ 0⤋
Layers of coal are not continuous around the world. Coal formed in areas that were tropical and humid at the time. One layer in most places.
2006-09-29 01:05:06 · answer #2 · answered by jazznsax 2 · 0⤊ 0⤋
No, we don't.
2006-09-29 19:42:58 · answer #3 · answered by Amphibolite 7 · 0⤊ 0⤋