The ultimate source of energy for the food we eat is the Sun. Through the process of photosynthesis, plants convert sunlight into chemical energy, which is stored in the form of glucose. When we consume plants or animals that have eaten plants, we obtain that stored energy. Additionally, fossil fuels, which are derived from ancient organic matter, also store energy that originally came from the Sun. In this way, the energy we derive from food and fuel can ultimately be traced back to solar energy.
What is the ultimate source of energy from the god we eat?
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