Which of the following are observations pick all correct choices the candle floats. the tires are flat. the dog is barking. the tire is flat because of a decrease in temperature. if a person walks by, then the dog will bark.

What human activity increases beach erosion?

Which of the following is most likely true about water in chemical solutions?

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?