hydrogen, n.All

The sun is not a giant ball of fire. It is a ball of plasma with the process of nuclear fusion turning hydrogen into helium inside of its core.

Hydrogen is the most abundant type of atom in the universe, representing nearly 74% of the atoms in the Milky Way galaxy

Hydrogen is a light, odorless gas, which, given enough time, turns into people.

Hydrogen is abundant — it is the most abundant element in the Universe (75%)

Farts are flammable due to methane and hydrogen

A nanometer is the size of about 10 hydrogen atoms laid side by side

Oxygen is required for combustion and hydrogen is a flammable gas, but together they make water . . .. Which puts fire out.