The diagram shows the motion of a group of water molecules over a heat source. how do the molecules at point a compare to the molecules at point b? check all that apply. they are closer together. they are farther apart. they are moving faster. they are moving slower. they have gained energy. they have lost energy.

The molecules at point A will be gain energy, move faster, and are farther apart.

The given picture shows the convection phenomena.

The molecules of point- A are heated by the heat source, so the kinetic energy of these particles will be high hence they move faster. Thus density will be low.

The molecules at point-B are not heated, so they have very low kinetic energy or move slower. The density will be high. Thus they sink.

Therefore, the molecules at point A will be gain energy, move faster, and are farther apart.

To know more about Convection:

link

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.