`CO_(2)` is released into the atmosphere by :
I. respiration II. Burning of fossil fuels
III. Decomposition of limestone during the manufacture of cement
IV. Volcanic eruption

CO_2 is produced in atmosphere by respiration burning of fossil fuels volcanic eruptions Identify the correct option(s).

CO_(2) is not a poisnous gas but there is increase in concentration of CO_(2) in the atmosphere due to during of fossil fuels and decomposition of limestone. The increase in concentration of CO_(2) may lead to

First CO_(2) release in aerobic respiration occurs during :-

First CO_(2) release in aerobic respiration occurs during :-

First CO_(2) release in aerobic respiration occurs during :-