A biodegradable bag is a type of bag designed to break down naturally in the environment. Unlike traditional plastic bags, which can take hundreds of years to decompose, biodegradable bags are made from materials that can be broken down by microorganisms. This process helps reduce waste and pollution in landfills and oceans. These bags are often made from materials like cornstarch, potato starch, or PLA (polylactic acid), which are derived from renewable resources. When disposed of properly, biodegradable bags can decompose within a few months to a couple of years, making them a more environmentally friendly option for carrying goods.