Amotorboat and a pwc are meeting head-on. which one is the stand-on vessel?

Explanation:

A PWC is a small motorboat with greater maneuverability. Both the motor boat and the PWC is a power driven boat which can sail with more speed and horse power. A PWC is small in size as compared to the motorboat. So the boat which is smaller and with greater maneuverability must give way to the other boat to avoid collision. So the motorboat must be a stand on vessel.

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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