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A blog intended to act as tools to enhance learning. An educational site which can be a source of solve question answer for secondary and higher secondary level students of both seba (secondary education board of assam) and cbse board. 

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ECOLOGY AND ECOSYSTEM (Definition, Type, Components and Function)

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ECOLOGY AND ECOSYSTEM (Definition, Type, Components and Function) ECOLOGY The term ecology was coined by Earnst Haeckel (1869). The study of ecosystem is defined as Ecology. Therefore ecology deals with the study of organisms in their natural home interacting with their surrounding. ECOSYSTEM The term ecosystem was coined by a British ecologist A. G. Tansley (1935). Ecosystems is a self regulating, self sustaining and functional unit of nature where living organisms (biotic component) interacting with each other and with their non living environment (abiotic factor) exchanging energy and matter. Types of Ecosystem- According to environment- 1. Terrestrial Ecosystem -   A terrestrial ecosystem is an ecosystem found only on landforms. Six primary terrestrial ecosystems are tundra, taiga, temperate deciduous forest, tropical rain forest, grassland and desert. 2. Aquati...
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ECOLOGICAL PYRAMID

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ECOLOGICAL PYRAMID Ø   The use of Ecological Pyramid was first described by Charles Elton in 1927 . Ø     Ecological Pyramids are graphical representation of the number of individual present or amount of biomass synthesized or amount of energy stored at successive trophic levels in an ecosystem. Ø   Ecological Pyramids are starting with producers at the base and successive trophic levels forming the apex are known as an Ecological pyramid. Types of  Ecological Pyramids- Pyramid of numbers- Ø   Graphical representation of numerical strength of various populations in different trophic levels per unit area of an ecosystem. Ø   Usually upright. Ø   Inverted and spindle shaped only in some parasitic food chain and tree ecosystem. 2.  Pyramid of Biomass- Ø   Biomass is the total weight of living matter per unit area. Ø   In terrestrial ecosystem, Biomass decreases from the produce...
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Thermal comfort

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Thermal comfort Human thermal comfort is a satisfaction with the surrounding thermal conditions. Thermal comfort is defined as “that condition of mind which expresses satisfaction with the thermal environment and is assessed by subjective evaluation ( ANSI/ASHRAE Standard 55-2010 ) . Thermal comfort is highly subjective to person to person. It is depends on different factor such as the air temperature, relative  humidity, radiant temperature, air velocity, metabolic rates, and clothing levels and each individual physiology, so it is difficult to measure. The six factors affecting thermal comfort are both environmental and personal. Determined of the thermal comfort is essential, when designing a structure that will be occupied by people. Thermal comfort is important for health and well-being as well as productivity. A lack of thermal comfort causes stress among building occupants. When they are too warm, people can feel tired; when too cold, they will be...
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