Composting is a process in which organic wastes are decomposed naturally to form a nutrient-rich compost. It is a natural and environment-friendly process, which forms a key feature in organic farming. Manure is an example of organic waste from animal feces that can also be composted. Apart from manure, compost can be a mix of fresh leaves, grass clippings, vegetable scraps, eggshells and other non-meat trimmings.