How did people discover...?!
How did people discover...?
that you could drink water...?
Answers:
Without water, there is no life......at least on this planet.
I'd like to know how you discovered how to use a computer with questions like this.
Someone did, felt better, and didn't die from it.
Just a natural instinct i guess
Purely evolution. We evolved from ocean creatures over a period of billions of years. Our body needs water to survive.