Wastes are those materials, substances, objects, things, among others, you need to delete because already it has no utility.Should be noted, that as we deployed, wastes are eliminated by their uselessness, though, it is recurrent that what to one is a waste and as such it should be deleted, another individual may still consider it useful for your life. For example, an office, a company or an industry, disposed of those paper documents that no longer needed, while there are people who rescues the paper garbage to resell it to those who recycle it.