The discovery of blood types improved transfusion safety.
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The Earth's tilt is responsible for seasonal climate patterns.
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Ants do not have lungs and breathe through small openings in their bodies.
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The hottest temperature ever reliably recorded on Earth exceeded 130 degrees Fahrenheit.
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The human brain operates on about 20 watts of power.
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In 1938, Otto Hahn's work led to the discovery of nuclear fission.
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Some bacteria can survive in extreme environments such as deep-sea vents.
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The Hawthorne experiments studied workplace productivity.
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The Earth's interior is layered into crust, mantle, and core.
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