Show cause of ocean tides tides are caused by the gracita dional attraction or pull ot of the ls sun n and moon upon the water ater and upon the earth itself tho the moon being so much nearer than the sun Is of 0 course the principal cause when the moon Is directly over a given place it pulls the water under it and thus tends to keep up a tidal wave just juet under the moon at the same time it la is pulling the earth itself but it pulls the water more than the earth underneath simply because the moon Is nearer to the water on the surface than it la Is to the solid earth behind it it |