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In which sentence does an adverb clause modify an adverb?

1.)The scientists studied the sun as the eclipse’s shadow swept across Earth.
2.)A full lunar eclipse lasts longer than a partial eclipse.
3.)We used safety goggles when we viewed the eclipse.
4.) When people did not understand the science behind an eclipse, they were afraid of the solar and lunar events

User Artur A
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1 Answer

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The sentence in which an adverb clause modifies an adverb is 2) A full lunar eclipse lasts longer than a partial eclipse.
The adverb is longer, and the adverb clause is than a partial eclipse.
User Withakay
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