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The K shell (n=1) holds at most 2 electrons.
So the correct answer is 2 electrons.
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Crookes glass is known for absorbing UV radiation.
So the correct answer is Crookes Glass.
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According to the keyed exam answer, German silver is Cu + Ni.
Editor note: commercial German silver typically includes zinc too; options left unchanged.
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Planetary gravity retains the atmosphere.
So the correct answer is Gravity of the planetary body.
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A compound microscope forms an inverted image.
So the correct answer is inverted.
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A cyborg is a being with artificial/biological enhancements โ covered by all of the above.
So the correct answer is All of Above.
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