The picture below is an example of a geothermal heating system. In it, underground pipes filled with water are used to either heat or cool houses during the winter or summer, and lower electricity bills. Why would this system be considered as a good alternative energy source?
The picture below is an example of a geothermal heating system. In it, underground pipes filled with water are used to either heat or cool houses during the winter or summer, and lower electricity bills. Why would this system be considered as a good alternative energy source?
A. They can only be built near streams.
B. It is renewable and doesn't create pollution.
C. Installing this system harms ecosystems.
D. It is nonrenewable and creates pollution.