<span>Chemical properties, such as density, must be observed when a substance is in its natural state at room temperature and normal atmospheric pressure.</span>
"Atmosphere" is the one among sphere of earth among the following choices given in the question where <span>diffusion of carbon dioxide from the hydrosphere occur. The correct option among all the options given in the question is the first option. I hope that this is the answer that has come to your great help.</span>
