Without climate control, no time - zero.
why would it be difficult for a peron to survive on mercury andneptune
No one has actually ever stepped or been on mercury as no microbe would survive the long journey.
There is no way to survive on mercury
It does not affect longevity of a person's life.
With sufficient nutritious food and plenty of water, a person can survive indefinitely.
66 days
no
3 minutes
as long as the blood doesnt go to their head
They can survive but only with protective equipment.
something
no