Cause living things can not directly use most of matter which they found in nature. For example carbon, all organism use carbon in complex structure, that is in compound or macromolecule(glucose,fructose,amino acid). we can not directly earn ATP from C which we found in soil/other sources.
When a tourist told him that each turtles look different on the island
Kinetic energy is best described as the energy of motion, energy of position, or the energy of electrical change.
<span>The way goods and services are produced, distributed, and consumed in a society mean a consumpation of goods and the supply of a money, that talks about economy, so the answer is C: economy.</span>