are some of the other areas in which osmosis and diffusion have played important roles in society?

Question

What are some of the other areas in which osmosis and diffusion have played important roles in society? Thanks for your help!

Answer 1

Osmosis:
Household water filtration-reverse osmosis.
Bathe a part of your body in salt water to reduce swelling; or rinse your mouth with salty water to reduce swelling after dental work.
Brine (very salty water) used to preserve meats 9(kills bacteria of decay).
Saturated sugar solution used to preserve fruits (again, kills bad bacteria)
Diffusion:
Perfume- Can be smelled far from the source.
Smoke- (same as above)