iron is the cheapest
Water
A solute can dissolve in another substance. The substance that does the dissolving is called the solvent.
If a substance has a PH of 11 then the substance is basic.
bile emulsifies fats
oil
It's usually the cheapest, yet it has some substance.
VENEZUALA
Renault Twizy
tehran_iran
The cheapest Car in the world.
Bacteria in your colon
Eugene Krabs.
Manure.
Nano.
This is iron.
Your soul
nothing is