Organic waste, also known as "biowaste," is any waste that comes from plants or animals and is biodegradable. It's typically composed of materials that were once alive, such as:

1. Food waste: This includes leftovers, vegetable peels, eggshells, coffee grounds, and any other food items that are discarded.
2. Green waste: This type of waste includes garden waste such as grass clippings, branches, leaves, flowers, and other plant material.
3. Paper waste: This includes soiled paper and cardboard that are not suitable for traditional recycling due to contamination with food or other biological materials.
4. Wood waste: This includes untreated wood, sawdust, and other wood materials.
5. Textiles and fibers: This includes natural fiber products like cotton, wool, and silk.
6. Manure and animal waste: This includes waste from livestock and pets, as well as from wildlife in some cases.
7. Human waste: In some contexts, human waste, or sewage sludge, is also considered organic waste.

When disposed of improperly, organic waste can contribute to methane emissions, a potent greenhouse gas. However, when managed properly, organic waste can be composted, turned into soil amendments, or used to generate biogas, contributing to a circular economy and sustainable waste management practices.