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Good question. Since the Sun is our primary power source, it is the first step in analyzing where the energy from something comes from. Let's look at a nice T-bone steak for example. So on a bright, sunny day, the Sun is shining down on some grass. The grass grows enough and then the cattle farmer lets his heard out to graze. So the cow takes in the grass which was already taking in energy from the Sun. The cow will continue to do this, gathering food from the grass and therefore, energy from the Sun. The next step is a consumer buying the meat at a grocery store. When you cook and eat the steak, you will be consuming food in the form of that cow, which got its energy form the grass, which in turn got its energy from the Sun. Thus, the Sun is our source of energy for everything in our world. Everything can thus be traced back to the Sun as its primary supplier of energy.

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15y ago

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