Removing heat from a system changes the internal energy of the system. Which scenario correctly represents this case?
A.) placing a bowl of ice cubes in a closed room
B.) adding ice cubes into a thermos of hot coffee
C.) switching on the air conditioning of a closed room
D.) placing a thermos with hot coffee in an air conditioned room

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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