Coal is used to produce electricity by burning in coal-fire power stations.
Electricity is a form of energy.
Coal is used to produce energy by burning in coal-fire power stations.
What does burning coal in coal-fired power plants produce?
Options:
  - Decibels
  - Fireplaces.
  - engines
  - organisms
  - Aloe plants.
  - Banana plants.
  - Energy.
  - warmth