True cuz it doesn’t depend on populations
Living on land<span> means </span>reptiles<span> can't rely on absorbing oxygen through their skin like amphibians. All </span>reptiles<span> have lungs they use for breathing -- even those who </span>live <span>most of their lives near or in water, such as crocodiles, must surface to breathe. Lungs </span>allow reptiles<span> to venture far away from aquatic environments.</span>
The layers of the atmosphere are classified according to changes in Altitude since its the more reasonable one.
