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Review the paragraph at the top of page 2.

Click or tap the sentence that BEST explains
why scientists during the eighteenth century
were unable to explain how bats used
echolocation.

Review the paragraph at the top of page 2. Click or tap the sentence that BEST explains-example-1
User Rui Curado
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1 Answer

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23 votes
little progress was made for more than a century
User Deniece
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