Consider the following statements : 1. Coal ash contains arsenic, lead and mercury. 2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment. 3. High ash content is observed in Indian coal. Which of the statements given above is/are correct?
a
1 only
b
2 and 3 only
c
3 only
d
1, 2 and 3
Environmental Pollution - Thermal Power PlantsCoal Ash & EmissionsCoal asharsenicleadmercuryCoal-fired power plantssulphur dioxideoxides of nitrogenIndian coalhigh ash content