When you step on a roach, the roach applies an equal and opposite force on your foot
as your foot applies to the roach (we don't advocate killing insects this way, especially if
you are barefoot),
True or false?

True.

Explanation:

Newton's Third Law states that for every action, there is an equal and opposite reaction. This means that the roach is applying the exact same force that you are applying to it by stepping on it.

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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