Major Water Bodies - Tides
Major Water Bodies - Tides
Tides
The rhythmic rise and fall of ocean water twice in a day is called a tide. It is high tide when water cover much of the shore by rising to its highest level. It is low tide when water falls to its lowest level and recedes from the shore. The strong gravitational pull exerted by the sun and the moon on the earth’s surface causes the tide. The water of the earth closer to the moon gets pulled under the influence of the moon gravitational force and causes high tide. During the full moon and new moon days, the sun, the moon and the earth are in the same line and the tides are highest. These tides are called spring tides. When the moon is in its first and last quarter, the ocean water get drawn in diagonally opposite directions by the gravitational pull of sun and earth resulting in low tides. These tides are called neap tides.
What object has the greatest effect on earth's ocean tides ? | |||
| Right Option : B | |||
| View Explanation | |||
Which is the main cause for the occurrence of tides ? | |||
| Right Option : D | |||
| View Explanation | |||
Which tides occur during the first and third quarters of the moon ? | |||
| Right Option : A | |||
| View Explanation | |||
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