Knees and elbows are two of the most common ones.
Answer:
pure water will have the lowest boiling point.
I think it got deleted but the answer is Ammonium acetate maybe this is why it got deleted 10-9=1
the time required for the activity of a substance taken into the body to lose one half its initial effectiveness. Informal. a brief period during which something flourishes before dying out.
hope this helps ^^