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<span>A primary source is a type of obtaining or sourcing information after the phenomenon occurred at that particular time and when photographs are the first-hand materials that were able to capture that specific moment which then can convey the information. Primary resources also include –newspapers, journal articles, magazines and etc. These information are very vital for its credibility and reliability. </span>
Answer:
It means "importance".
Explanation:
When the text says "To add to the significance of their mission" the text is referring to the addition of importance that the female walk in space will receive, since it will be held in the month of women, as it shows that women have reached places never imagined.
We can reach this conclusion, because the word "significance" refers to something very important, full of meaning and importance.
Answer: equality is an important American value.