My answer -
I believe that the answer is (A).
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Answer:
a shiny smooth leaf
Explanation:
A shiny smooth leaf will cause specular reflection. Other choices will cause diffused reflection from the surface.
A specular reflection is similar to how a mirror or smooth surface reflects. The incident light is given off as a single ordered reflection from the surface of a body.
For this to occur, the surface incident must be smooth and without rough patterns on it.
A path way with rough rocks, small patch of soil and rough logs will give off diffused reflection
I,think potential energy is mgh so 65*100*9,81
Density is a physical property that describes the relationship between mass and volume. Density is the amount of matter in a given space, or volume.
