Question

Which is an example of a secondary energy source?

a.solar
b.coal
c.electricity
d. nuclear

Answer 1

coal is an example of secondary energy source.

Answer 2

COAL

Step-by-step explanation:

Secondary energy refers to the more convenient forms of energy which are transformed from other, primary, energy sources through energy conversion processes. Examples are electricity, which is transformed from primary sources such as coal, raw oil, fuel oil, natural gas, wind, sun, streaming water, nuclear power, gasoline etc., but also refined fuels such as gasoline or synthetic fuels such as hydrogen fuels.