Which statements are not true regarding tsunamis: 1. They are caused only by underwater earthquakes. 2. They can cause ships to topple in the middle of the oceans. 3. Their velocity reduces as they approach the shores. Select the correct answer:
A
1 and 2 only
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B
2 and 3 only
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C
1 and 3 only
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D
1, 2 and 3
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Solution
The correct option is A 1 and 2 only Velocity: In deep oceans, can travel at 800kmph. The velocity decreases near the shore and the wave starts increasing in height. They can even be caused by underwater Landslides