Thermal energy is the energy associated lectric fields. being stored in chemical bonds. the pull of gravity. temperature.

Thermal energy is the type of energy that manifests itself as heat.

Explanation:

It is also called caloric or heat energy. The kinetic energy of an atom, that is the one that derives from the continuous movement and vibration  of them, produces the sensation known as heat and which is the basis of thermal energy.  Bodies that are at high temperatures have higher thermal energy than others at a lower temperature. This is because their atoms move faster and, therefore, generate more kinetic energy.

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.