A cross-sectional research study analyzes the same group of subjects over a long period of time. Please select the best answer from the choices provided

T
F

47r7eudueueueurudueu37373

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

the answer should be in the picture.