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  1. What Keeps Us From Floating Away From Earth?

    What Keeps Us From Floating Away From Earth?

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  2. Which Explorer Led The First Expedition to Circumnavigate The Globe?

    Which Explorer Led The First Expedition to Circumnavigate The Globe?

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  3. What is The Name Of The River That Flows Through Vienna?

    What is The Name Of The River That Flows Through Vienna?

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