A plate moves south at a rate of 2 cm/year. How many meters south from its original location will the plate be in 4,000 years? Based on the graph, how many students in a class of 200 would be expected to choose pepperoni or hamburger as their favorite pizza

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?