Which ocean is bound by the North American, European and Asian continents?
Which is the world’s largest ocean basin?
How deep is the deepest point in the sea?
What is a blue hole?
What are gabions?
How much does an adult blue whale weigh?
UK mains electricity has 230 Volts. What is the highest voltage electric eels produce?
Where is the world’s largest coral reef?
How much of the ocean floor has been mapped?
What can turtles mistake plastic bags for in the ocean?
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