Scientific Essay from the year 2007 in the subject Environmental Sciences, grade: B, Brandenburg Technical University Cottbus (University of Cottbus), course: Seminar, language: English, abstract: The planet earth has different species of organisms that have a specific role to play in the economic and social domain of a country. How ever, with the increasing population of man and pressure from its activities on the functioning of the planet, it has caused the inability of the ecosystem to meet the needs of the future generation.