Because it's just not one of those things where if you see something, you can say something... 👀
It would be misleading to assume I could tell you which is more dangerous between cave diving and biochemistry.
There are many variables for each that would be hard to generalize.
What chemicals/equipment is being worked with? (and mind you I have absolutely zero knowledge of cave diving) What experience level does the person/persons have? How much is known about the substance/experiment/cave before hand? Safety equipment and PPE? For cave diving specifically, I guess you'd have to factor in location, potential erosion, and possibly weather? And so many more variables.
I would like to answer your question but comparing the two would only be an opinion.
I'm just mainly trying to help anyone who might have questions about COVID-19.
Some people are really worried, not because they shouldn't be, but because there are so many rumors and "explanations". If I can help in any way, I would like to...or, at least help point people in the right direction based on my relatively limited (compared to many others) knowledge.
Thank you and stay safe, dear.