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Gnom [1K]
3 years ago
9

Which

Biology
1 answer:
Rus_ich [418]3 years ago
5 0

Answer:

oxygen makes up most of the gas in the atmosphere

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12 POINTS! If the frequency of a sound increases, what happens to its wavelength?
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Electron microscopes use
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Electron microscopes use _beam of electrons___ in order to allow for higher magnification and more detail when viewing specimens.

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