<prompt> Raptures of the depth are caused by:CO narcosisCO2 narcosisN2 narcosisO2 toxicity  <response>: A diver working at the depth for prolonged periods has gases in the body getting compressed and dissolved in body fluids. Major gas being N2, its dissolution in the body fluids, and paicularly in the myelin sheaths of CNS neurons, results in the raptures of the depth. 