Answer:
There are several main criteria for determining whether a source is reliable or not.
1) Accuracy. Verify the information you already know against the information found in the source. Look also for disclaimers as to the accuracy of the content. You may also want to double-check the information against a source that you already know is trustworthy. Even though a source may use technical language, the content may be misleading.
1) She enjoyed being on the boats and at sea
2) She was a lively woman and a good leader
3) Her piracy made it difficult for others to travel at sea
4) They were surprisingly similar and found common ground between them.