What are "currents"?
Is it true that sand piles up on the bottom of the ocean only 1 centimeter every 1000 years?
What’s the difference between the current and the tide?
What is a warm water current?
How do whirlpools form?
What is a riptide?
What is a whirlpool?
What are upwellings?
Why do hurricanes hit Florida a lot?
How are beaches made?
Is it safe to go in the ocean if I don’t know how to swim?
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