What is the primary source of energy for living beings on earth?
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What is the primary source of energy for living beings on earth?
What is the primary source of energy for living beings on earth?
The sun, center of our planetary system and star of the milky way galaxy (our galaxy), is the source of the energy that is processed and consumed by living beings. Intense nuclear reactions in the sun liberate light and other energetic radiations into the surrounding space. Some of this energy reaches our planet.