1.

Complete the following statements :When the sun is setting, the light from it has to travel a ……………… thickness of the earth’s atmosphere and only…….. wavelength……… light is able to reach us. Sunset is therefore……….

Answer»

When the sun is setting, the light from it has to travel a greaater thickness of the earth’s atmosphere and only longer wavelength red light is able to reach us. Sunset is therefore red



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