What is the primary source of energy in a food chain? a) consumers b) plants c) producers eliminate d) sun

The sun is the primary source of energy. Without it, plants wouldn’t be alive. Without plants, consumers, such as herbivores, would not be alive because plants are the producers. So, the answer is D, the sun. If you still don’t understand, let me know and I will try to explain in further detail to the best of my ability. Hope this helped!

Ibelieve y y even though i've only taken chemistry for one year