That would be coal because you can cook with coal, build things out of coal, and use it for energy
Answer:
<em>Digested food is a source of potential energy</em>
Explanation:
When we digest food, the molecules of the food are broken down into smaller compounds. Chemical energy is released due to this process. Chemical energy can be used to form glucose and fat. These molecules store energy in them. When energy is required by the body, the glucose molecules can be converted into ATP and hence give energy. This energy can be used for various purposes such as it can be converted into mechanical energy for muscle movements.
Any photos below 7 is known as acidic, the lower the pH the more acidic the solution I believe.
<span>The part of the nephron conserves water and minimizes the volume of urine </span>loop of henle.