Energy is used for heating a building by a heating system.
Geothermal energy is used for heating and cooling systems.
Geothermal energy can be used to heat a building.
What is a way to heat a building?
a. sound
b. Movement of an air mass
c. burning coal
d. static electricity
e. In the winter
f. potential energy
g. by indirect light
h. geothermal energy