No offense, but the other answer is wrong, it is hydroelectric energy.
Explanation:
Hydroelectric energy does not create ANY pollution whatsoever. Whereas solar energy can and has been known to create toxic and chemical material and release them into the atmosphere.
Answer: Blindly selecting from a bag filled with blue green red and yellow beads.
Explanation: I looked around on brainly and other websites since you did not provide the choices and I found out this answer. Let me know if it helped!