text: The obvious answer is the tides would be much smaller. We would still have tides, but they would be: (1) Caused by the Sun and therefore smaller. (2) They would come at roughly the same time each day.\n\nThis would affect a good deal of the marine life that depends on the tidal changes.\n\nLighting would also change. Reproductive behaviors in a number of animals are goverened by the moon's cycle. It is not known how much the moon's absence would change this.\n\nThe days would not grow longer as someone suggested. The opposite is true as the friction overcome in producing the tides takes energy. That energy is coming out of the earth's rotation and the moon's orbiting around the earth. The moon is slowly moving farther away and the earth is slowing down so the days are getting longer. Of course, this is an extremely slow process and you are not going to notice any change. The moon's absence would mean it wouldn't take place.\n\nEarthquakes would not be affected. They are caused by plate tectonics, which is independent of the moon.\n\nIf you are interested in the moon, try\nhttp://groups.yahoo.com/group/lunar-obse...\n\nHope this helps\n\nChuck