<prompt> Graph given below demonstrates ventilation-perfusion ratio curve for the normal lung. If VP ratio is decreased , what shall be the effect on pCO2 and pO2 ?O2 tension, CO2 tensionO2 tension-No change , CO2 tensionO2 tension, CO2 tensionO2 tension, CO2 tension  <response>: Decreased ventilation-perfusion ratio-Decreased oxygenation due to decreased ventilation with respect to perfusion-PaO2 decreases and Pco2 increases. 