Which of the following are used as raw materials in Iron and Steel industries?

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[A] 1 and 2 only

[B] 1, 2 and 3 only

[C] 2, 3 and 4 only

[D] 1, 2, 3 and 4

Answer: D

Notes:

Explanation: The development of the iron and steel industry opened the doors to rapid industrial development in India.

Almost all sectors of the Indian industry depend heavily on the iron and steel industry for their basic infrastructure.
The other raw materials besides iron ore and coking coal, essential for iron and steel industry are limestone, dolomite, manganese and fire clay.

Source: NCERT – India People & Economy