The cycling of carbon between biotic and abiotic systems is called
Carbon Cycle
Water - Mineral Cycle
A type of gaseous cycle
Both 1 and 3
As we have already studied in Carbon Cycle -
The cycling of carbon between biotic and abiotic systems is called carbon cycle. It is a gaseous cycle.
- wherein
The main source of carbon is the carbon dioxide (CO2). CO2 is present in the air and water. Air is the main reservoir. CO2 content of air is 0.03%. Its amount remains constant.
Hence, the correct option is (a).