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 Luke Haqq
PowerScore Staff
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  • Joined: Apr 26, 2012
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#111462
Hi Niteesh!

This question stem directs us to the final sentence of Passage A: "But negative evidence rarely is either." In context, it's saying that "negative evidence rarely is [conclusive proof that something is false] either."

We're then asked for something from Passage B that would support this idea. Answer choice (B) mentions the initial failure of Newton’s laws to correctly predict Uranus’s orbit. The author of Passage A would take this as support that negative evidence rarely is conclusive proof that something is false. After that initial failure, Neptune was later discovered and Newton was saved. In other words, there was some negative evidence with respect to Newton's laws but these didn't end up being conclusive proof that those laws were false.

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