Two children are waiting to go down a slide the first child goes down and then stays sitting at the bottom of the slide if there is no friction involved and all of the mechanical energy is conserved what would happen to the energy of the second child form the top of the slide

You exhale co2 which is produced during cellular respiration.  co2 combines with the water in your blood's plasma to make up one half of the body's most important buffer pair, carbonic acid.  the more physical activity you engage in, the more co2 your body is producing.  you can see this by putting some of the cabbage indicator in a glass and then blowing bubbles into it through a straw.  can you see a change in the color of the indicator?