Earth

What is the name of any body of igneous rock named for the Roman god of the underworld?

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What imaginary line divides the Earth's northern and southern hemispheres?
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Which star is the closest one to Earth?
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What is the name of the single continent that existed early in Earth's history?
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One needs to travel to which state in New England to see the highest tides?
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In a "drought", what is absent in terms of weather?
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Which of these rivers flows north?
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What is the term for when pieces of glaciers break off and form icebergs?
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If you are going to Florida Bay from the everglades which direction would you travel?
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