Answers

2016-01-10T21:46:15+05:30
The alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon and sun.
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2016-01-11T12:35:03+05:30
tides r the rising and falling of the  main water bodies due to the gravitational force of the moon and the sun.each tide remains for 12 hours
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