A primary resource is when someone like a farmer in harvesting corn or a fisherman is catching a fish. Its basically raw material that hasn't been made into a product yet.
In the study of history, the phrase "primary resources" refers to documents written at or shortly after the events being discussed. I did a web search on that phrase and found helpful website. See...
Renewable resources can be replenished, and will never run out. Wind Power, Solar Power, Hydroelectricity, Biomass, and Geothermal are all examples of renewable energy sources. Non-Renewable sources...