Is it accurate to say that once science has answered a question, it is settled forever?

Yes, the scientific method works so well that once a discovery is made it never changes.
Yes, once a scientific "truth" is discovered there is nothing more to study about the topic.
No, if new evidence is acquired or new perspectives emerge, scientific ideas can be revised or replaced.
No, everything is really science so if a more appealing alternative emerges scientists will generally eliminate old ideas.

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kimun
The answer to this question is the third option 

Answer:

The correct answer will be option No, if new evidence is acquired or new perspectives emerge, scientific ideas can be revised or replaced.

Explanation:

Scientific research is a field of asking new questions based on the observations of the natural phenomenon and answering the real answers based on the experiments. The path of answering the questions leads to new discoveries and inventions.  

The scientific knowledge is not meant to be static but it is expanding and diversifying every day as new ideas and facts are being added to the science increasing the knowledge of the field. This edition of the new facts can change the well-established facts, which can be revised modified and changed. The established facts can be replaced with new facts even.

Thus, the selected option is the correct answer.