The details from this excerpt that best show that the author's purpose in including this paragraph is to illustrate how hazardous the scientists' work is:
People wearing biohazard space suits tend to step around one another like two wrestlers at the beginning of a match, watching the other person's every move, especially watching the hands to make sure they don't hold a sharp object. This cringing becomes instinctive.
<h3>What is the meaning of hazardous?</h3>
When something is hazardous, it simply means that it is dangerous to health.
From the detail highlighted above, it can be seen that the scientists had to take a lot of protective precautions to prevent being hurt by the sharp substances. So the sentence above shows the hazard.
