PLEASE ANSWE

People exert a downward force (their weight) when sitting in a chair. Why do people not fall through chairs due to this force?

A. because the force of the person is less than the weight of the chair
B. Because Newton's First Law of Inertia
C. Because the mass of the chair is greater than the mass of the person
D. Because the chair exerts an equal and opposite force on the person

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another? the volume and the shape stay the same. the volume increases to fill the new container, but the shape stays the same. the volume stays the same, but the shape changes to fit the new container. the volume and the shape change to fill the new container.

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?