Which of the following industries use ferrous metallic minerals ?

The correct answer is option 4: None of the above

• Ferrous minerals are minerals that contain iron (like iron ore, manganese, chromite).

• Industries that use ferrous minerals include iron and steel industries, machinery industries, etc.

Now, looking at the options:

• Aluminium industries ➔ Use bauxite (a non-ferrous mineral).

• Copper industries ➔ Use copper ore (also non-ferrous).

• Jewellery industries ➔ Use gold, silver, platinum, etc. (again non-ferrous).