Answer:
Oil
Explanation:
everything else is above the earth
A gas can be treated as ideal gas when it is at higher temperatures or low pressures relative to its critical temperature and pressure. Because, at high temperatures and low pressures, the density of gas decreases and at low densities real gases behave as ideal gases.
It is Titration (when you adding ,for example, acid to base)
The chemical energy is converted to mechanical energy to make the body move