Not much, nothing to get concerned about, it's only a couple of inches a year. But, if the moon is moving away from, in the past, it was closer. Over 4.5 billion years, even a couple of inches a years is a big difference. 500 million years ago, if the moon was 1/4 closer than it is now, the effect on the tides would be such that the whole earth would be completely flooded twice a day.
How do land animals live on land that is being flooded twice a day?
2006-12-22
15:06:09
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8 answers
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asked by
ted.nardo
4