How does distance affect the brightness of a light? Please answer fast im doing a test.

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Answer →  As light travels a certain distance, the intensity of the light will decrease by a square of the distance.

Why →  The farther away the light is the dimer it gets but the close light gets the bright it gets

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the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.