It depends on where in the digestive cycle what breaks them down. Bile makes very large fat globs into very small ones. This allow enzymes called lipases to finish breaking them down so that they can be absorbed.
Simple molecules are further broken down in cells in a process called catabolism.
ATP
digestion
Boredom.
This chemical process is called cracking.
absorption.
Rocks being broken down into soil and sand is a natural process called weathering. Weathering involves the physical, chemical, and biological processes that break down rock into smaller particles over time. This process is important for soil formation and nutrient cycling in ecosystems.
Fermination
Cellular respiration.
The process of rocks being broken down by water, wind, ice, and heat is known as weathering. Weathering breaks down rocks into smaller pieces over time through physical or chemical means.
The controlled process by which hydrocarbons are broken down or rearranged into smaller, more useful molecules is called catalytic cracking.
digestion