White coal refers to

A. Hydroelectricity

B. Petroleum

C. Uranium

D. Coal

Answer: Option A

Solution(By Examveda Team)

White coal refers to Hydroelectricity. White coal was used in England to smelt lead ore from the mid-16th to the late 17th centuries. It produces more heat than green wood but less than charcoal and thus prevents lead evaporating. White coal was produced in distinctive circular pits with a channel, known as Q-pits.