I think you should do the research yourself.
We've even had some posts here on mercury. Use that as a keyword in the search function.
Everyone here has to do a bit of homework, and decide for himself/herself about the topics.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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