Question

The *lightest and most abundant element*, the *fuel of the universe*. It is found in numerous compounds such as water and most carbon containing compounds.

Answer 1

Hydrogen is the lightest and most abundant element in the universe. It is found in numerous compounds such as water and most carbon-containing compounds. Hydrogen is a component of many substances.

Step-by-step explanation:

Hydrogen is the lightest and most abundant element in the universe. It is found in numerous compounds such as water and most carbon-containing compounds. Hydrogen is a component of many substances, including petroleum, minerals, cellulose, starch, sugar, fats, oils, alcohols, and acids.