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