Use the drop-down menus to complete the sentences describing the important ideas in Hess’s theory. Hess expanded on Wegener’s theory of
.

Hess proposed the idea that
are places where crust is created.

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?