Why do biodegradable products decompose?

Biodegradable products decompose due to the action of microorganisms, such as bacteria and fungi, which break down organic materials into simpler substances. These organisms thrive in environments with moisture, oxygen, and suitable temperatures, facilitating the decomposition process. As they consume the biodegradable materials, they convert them into natural byproducts like carbon dioxide, water, and biomass, ultimately returning nutrients to the soil. This process is typically faster than that of non-biodegradable products, which can persist in the environment for much longer.