In what forms is carbon now locked up in the lithosphere and biosphere?
2007-05-20 22:14:44 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
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2007-05-21 02:34:11 · answer #1 · answered by jason 4 · 0⤊ 0⤋
Many, with the largest amount being locked up in the lithosphere (about 20 000 000 000 tonnes) in such rocks as limestone. Limestones chemical composition is CaCO3. Limestone is largely composed of reef building organisms, hence reefs are so important. The rest of the carbon is in Coal and Oil (10 000 000 tonnes), Oceans (35 000 000 tonnes) Dead organic matter (3 700 000 tonnes), Terrestrial organisms (550 000 tonnes) and and a small amount in ocean plants and sediments.
2007-05-21 05:38:12 · answer #2 · answered by Veronica L 2 · 0⤊ 0⤋
Carbonates and hydrocarbons
2007-05-21 05:23:01 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋