your answer would be 55 im pretty sure
Thinking about causation involves the ability to identify, analyze, and evaluate the relationships among many historical events as both causes and effects. Historians often try to distinguish between immediate, proximate, and long term-causes and effects. Some events and conditions may have some correlation without proof of a direct causal relation while others are only coincidental or without a relationship
I honestly don't know, but my best guess would be the highly concentration salt solution because usually salt dehydrates things.