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The iron and steel industry is called a 'mother industry' because:

AIt was started by a woman in colonial-era India
BIt uses the most water of any industry in India
CMost other industries depend on its products as inputs
DIt hires more women workers than any other industry
Answer & Solution
Correct answer: C. Most other industries depend on its products as inputs
Iron and steel is called the 'mother industry' because most other industries (automobiles, construction, machinery, defence, railways) depend on its output as their raw material.
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