Earth

What was the nationality of the scientist who demonstrated a heliocentric system?

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Earthquakes sometimes cause "tidal" what?
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What is the estimate of the true age of a mineral or rock called?
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What was the name of the volcano that used to be Crater Lake?
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Which of the following types of trees does not have lobed leaves?
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When does magma become lava?
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What breaks when its height is 3/4 of its depth?
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What is the name for a 100 foot tall tidal wave?
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What kind of scientist would study rocks, minerals and mountains?
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