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:

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current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.