Which state of matter has a constant shape and volume

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

At which location in earth’s interior does the top density continue to increase as thickness decreases?

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.