Respuesta :
Answer: d. all of the above
Explanation:
Renewable sources of energy are those sources which can be can be used again when once used. They can be replenish after a single use. These resources does not generate pollution in the atmosphere as compared to the non-renewable sources of energy.
These resources can be used by large group of human population hence, these reduces the social costs.
The energy generated by these resources is cost effective.
The energy produce by these resources does not generate pollution hence, maintains the integrity of the environment by keeping air, water and soil clean.