<h2>A. Temperature x Entropy (TS)- The total unusable energy of a system </h2><h2>B. Free energy (G) - The total usable energy of a system</h2><h2>C. Entropy (S) - The disorder of a system</h2><h2>D. Enthalpy (H) - The total energy of a system</h2>
Explanation:
<u>The free energy</u> of the thermodynamic system is such a type of energy that is present or available to do work. So it can be called as total usable energy of the system.
<u>Entropy </u>is a thermodynamic quantity that explains about the disorder or the randomness of the system. As the temperature increases, the entropy of the system also increases.
<u>Enthalpy</u> is a thermodynamic quantity that explains the change in the internal energy so consider the total energy of the system.
Human interaction with the ecosystem has rapidly spread disease to Yellowstone's wildlife, which has proven to have adverse effects on populations. Also, humans tend to leave trash in poor areas. Littering is a problem in Yellowstone because it can be ingested by the wildlife and also pollute the park.
A zoonosis (zoonotic disease or zoonoses -plural) is an infectious disease that is transmitted between species from animals to humans (or from humans to animals).