Make a list of items where substitutes are being used instead of minerals. Where are these substitutes obtained from?

Model Answer & Options

Source: Textbook

Substitutes are increasingly used to replace minerals:

  • Plastics for Metals: PVC (Polyvinyl Chloride) is used for pipes instead of copper or iron. It is derived from petrochemicals.
  • Fibre Optics for Copper: Optical fibre cables are used for telecommunications instead of copper wires. They are made from silica (glass).
  • Composites for Steel/Aluminium: Carbon fibre composites are used in aerospace and automotive parts instead of steel or aluminium. They are derived from polymers.
  • Engineered Wood for Natural Timber: Plywood and MDF are used in furniture instead of solid wood.

Take Topic Quiz

Test your understanding of this topic with instant AI feedback.

Start Interactive Test