pole – n. a long, straight piece of wood or metal that is often placed in the ground so that it stands straight up

photovoltaic – adj. relating to the production of electricity by exposing two substances to light

panel – n. a flat piece of metal or plastic

facilitate – v. to make something easier

greenhouse gases – n. gases or pollution that causes the temperature of the Earth to raise

renewable – adj. restored or replaced by natural processes
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