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Light-driven splitting of water is photolysis.
So the correct answer is Photolysis.
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According to the keyed exam answer, a leech has 32 brains.
Editor note: these are ganglia; options left unchanged.
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According to the keyed answer, about 9 to 12 pints.
Editor note: range is high vs many textbooks; options left unchanged.
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Escape speed is about 7 miles/s (~11.2 km/s).
Hence the keyed answer is 7.
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Longer path length at sunrise/sunset increases scattering of shorter wavelengths.
So the correct answer is Of Scattering of light due to dust particles and air molecules..
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Ion-exchange zeolites soften permanently hard water.
Hence the keyed answer is Zeolites.
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