A) Air and water
B) Fossil fuels
C) Rocks
D) All of these
Correct Answer: D
Solution :
Carbon is present in the abiotic environment in following forms (i) CO2 in air or atmosphere (ii) Dissolved CO2 or carbonic acid and bicarbonate in water or hydrosphere (iii) Carbonates and graphite in the rocks.You need to login to perform this action.
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