Which of the following statements about iron filings placed upon glass resting on top of a bar magnet is false? a. the direction of the flux in the portion of a magnetic field outlined by the filings will be from the north pole of the magnet to the south pole. b. the filings will sit on the glass on curved paths between the north and south poles. c. the filings will be clustered more densely where the field is weakest. d. the density of the filings will match the intensity of the magnetic field.

C. The filings will be clustered more densely where the field is weakest.

he made 11 calls in one day

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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