Earth

On October 11, 1999 the world population hit a milestone of how many?

More Questions from Earth
Hanging valleys may occur in all of the following ways except?
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What was TIROS I, launched on April 1, 1960?
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What is the low pressure area along the equator called?
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On October 11, 1999 the world population hit a milestone of how many?
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What is the hottest place on earth?
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What is water that flows over the ground rather than seeping into it called?
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What is the term for the Earth's crust where it underlies oceans?
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Which of these is a spiral storm that can be many miles wide?
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