AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Mineral-based industries. They use minerals/metals as raw materials — e.g., iron ore for steel, bauxite for aluminium, and copper ore for copper smelting.
The question has two parts in one mark: name the category (mineral-based) and state one characteristic (raw materials are minerals/metals). Keep it to one line. The textbook explicitly lists iron and steel, cement, and aluminium under "mineral-based" in the classification table.