What is the primary source of energy in a food chain? the sun producers decomposers consumers

## Step 1<br />A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats or decomposes another. The primary source of energy in a food chain is the sun. <br /><br />## Step 2<br />The sun provides the energy that plants, or producers, use to make their own food through the process of photosynthesis. This process converts solar energy into chemical energy, which is stored in the bonds of glucose and other organic molecules.<br /><br />## Step 3<br />Producers form the base of the food chain, and all other organisms in the chain, including consumers and decomposers, rely on the energy initially captured by producers. Therefore, the sun is the primary source of energy in a food chain.