What does the lack of S waves from earthquakes tell scientists about what is inside earth?

A. There must be a solid
B. There must be a gas
C. There must be a liquid
HELP ME PLZ ILL MARK U BRAINLIEST

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

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?

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume