Question

which industry is often referred to as the backbone of modern industry and why​

Answer 1

Answer:

Steel is called the backbone of the modern industry because almost everything we use is either made of steel or has been made with machinery or tools made out of steel. The steel industry is basically the feeder industry, whose products are the raw materials for other industries.

Answer 2

Hydroxide is a diatomic anion with chemical formula OH⁻. It consists of an oxygen and hydrogen atom held together by a single covalent bond, and carries a negative electric charge. It is an important but usually minor constituent of water. It functions as a base, a ligand, a nucleophile, and a catalyst