Select the correctly spelt word to fill in the blank.
Helium is used with oxygen for asthma treatment because it ____________ very easily.

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Accepted Answer

The correct spelling of the word is 'diffuses'. It means to spread or scatter widely. The other options are misspelled versions of the word. Hence, 'diffuses' correctly fits the sentence: 'Helium is used with oxygen for asthma treatment because it diffuses very easily.'

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