Unit - I The Multidisciplinary Nature of Environmental Studies : Natural Resources Renewable and non-renewable resources : Natural resources and associated problems a) Forest resources; b) Water resources; c) Mineral resources; d) Food resources; e) Energy resources; f) Land resources: Role of an individual in conservation of natural resources. (Chapter - 1) Unit - II Ecosystems : Concept of an ecosystem, Structure and function of an ecosystem. Introduction, types, characteristic features, structure and function of the ecosystems: Forest ecosystem; Grassland ecosystem; Desert ecosystem; Aquatic ecosystems (ponds, streams, lakes, rivers, oceans, estuaries). (Chapter - 2) Unit - III Environmental Pollution : Air pollution; Water pollution; Soil pollution. (Chapter - 3)
