Biosphere

Objectives

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- To understand the scope and meaning of biosphere - To understand the meaning of ecosystem, its components, functions and biodiversity - To understand the major biomes of the world - To know the need for conservation of biomes

Recap

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- The place, things and nature that surround any living organism is called environment. - The interaction between man as an individual with his family, occupation and society is called human environment. - Population is a dynamic phenomenon where the number, distribution and composition are constantly changing. - Population change refers to an increase or a decrease in the population of an area influenced by births, deaths and migration. - The density of population is measured by dividing the total population by its total area. - On the basis of occupation, settlements are classified as rural and urban.