Question

which is called the back bone of the industry.​

Answer 1

Answer:

back bone of industry is called

Iron and Steel

Answer 2

$\huge\mathfrak\red{answer}$

Solution: Iron and Steel Industry is often called the backbone of modern industry. Almost everything we use is either made of iron or steel or has been made with tools and machinery of these metals. Ships, trains, trucks, and autos are made largely of steel.

Explanation:

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