Fungi play vital roles in the biosphere. They are essential to the recycling of nutrients in all terrestrial habitats because they are the dominant decomposers of the complex components of plant debris, such as cellulose and lignin.
A brochure is an informative paper document (often also used for advertising), that can be folded into a template, pamphlet or leaflet. Brochures are promotional documents, primarily used to introduce a company, organization, products or services and inform prospective customers or members of the public of the benefits.
Flyers pasted to a wall in Haikou, Hainan Province, China. A flyer is a form of paper advertisement intended for wide distribution and typically posted or distributed in a public place, handed out to individuals or sent through the mail. In the 2010s, flyers range from inexpensively photocopied leaflets to expensive, glossy, full-colour circulars.