1. what is true about all forces? a. they are unbalanced b. they involve more than one object c. they cause objects to moved. d. they cancel each other out

the answer is most likely D

multiply 2kg by latent heat of vap

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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