AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
Iron and steel is classified as a heavy industry because both its raw materials (iron ore, coking coal, limestone) and finished products are heavy and bulky, resulting in heavy transportation costs.
Source: Iron and Steel Industry, Chapter 6
The textbook directly states: "Iron and steel is a heavy industry because all the raw materials as well as finished goods are heavy and bulky entailing heavy transportation costs." For 1 mark, reproduce this key idea concisely — mention both raw materials AND finished goods being heavy/bulky. That is the complete justification the examiner expects.