Virginia’s blue ridge mountains were once among the tallest in the world, similar in altitude to the himalayas of today. this would still be the case if not for the process of a) erosion. b) folding. c) volcanism. d) metamorphism.

Which of these best describes an ionic bond?

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

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?