Biodegradable bags are made from natural materials that can break down over time through the action of microorganisms. Unlike traditional plastic bags, which can take hundreds of years to decompose, biodegradable bags typically decompose within a few months to a few years, depending on environmental conditions. They are designed to reduce pollution and lessen the impact on the environment. These bags are often made from materials like corn starch, potato starch, or PLA (polylactic acid), which are derived from renewable resources. When disposed of properly, biodegradable bags can return to the earth without leaving harmful residues. However, they still require specific conditions to decompose effectively, such as moisture and heat.