Question
The sheets used for roofing.

Answer

  1. The sheets used for roofing are made of plastic, aluminium.
  2. Plastic is hard, hence, protects against weather conditions.
  3. Plastic is transparent, hence, sunlight can pass through it.
  4. Aluminium is hard, light weight and durable, hence, protects against all weather conditions.
  5. Malleable hence formed into thin sheets.

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