If the distance from the crest of a wave to the next crest in 10 cm, and the distance from the crest to the trough is 4 cm? what is the wavelength and what is the amplitude of the wave.

28. evolution

29. environment, survive, offspring  

explanation:

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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