Talc (H2Mg3O12Si4). Number 1 on Moh's hardness scale (Moh's hardness scale starts at 1). That's hydrogen2 magnesium3 oxygen12 silicon4
Aluminium powder
The main constituent of natural gas is methane (CH4).
The main constituent of natural gas is methane.
carbon
wheat
Methane
The main constituent of coal gas is carbon monoxide, along with hydrogen, methane, and other hydrocarbons.
Do you mean what is the MAIN constituent of butter ? If so I believe it is cows milk.
methane
methane
Europe
Plasma and water.