What is one characteristic that makes a material biodegradable?

One key characteristic that makes a material biodegradable is its ability to be broken down by microorganisms, such as bacteria and fungi, into natural substances like water, carbon dioxide, and biomass. This process typically occurs under specific environmental conditions, such as moisture and temperature, allowing the material to decompose without leaving harmful residues. Biodegradable materials often contain natural polymers or compounds that are easily assimilated by living organisms.