Earth

What submersible helped to discover the wreckage of the Titanic in 1986?

More Questions from Earth
Mercurial barometers measure what?
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Which of these is the longest river in the world?
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What is the process of a river washing away its riverbanks called?
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What is hail made of?
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Which of the following terms refers to the process of mountain building?
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In weather terms, what is the opposite of heat?
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How many times does lightning strike the Earth every second?
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Ruby and sapphire are gem forms of which mineral?
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