Hydro energy
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This document discusses various sources of energy including coal, natural gas, other, nuclear, electricity, petroleum, and hydro electricity. It then lists three types of hydro energy: hydro electricity, wave energy, and tidal power.
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2) It provides details on how each type of renewable energy is harnessed and converted into electricity through different technologies like solar panels, wind turbines, hydroelectric dams, etc.
3) The document also discusses Kerala's significant potential for renewable energy generation from hydroelectric, wind, and solar sources though only a fraction of that potential has been tapped so far.
ALTERNATE AND RENEWABLE SOURCE OF ENERGY
Energy is defined as the ability or capacity to do work. There are two main types of energy sources - renewable and non-renewable. Renewable sources like solar, wind and hydro can be replenished naturally, while non-renewable sources like coal, oil and natural gas are finite and will eventually be depleted. Conservation of energy through more efficient use can help reduce consumption of conventional sources and promote sustainability.
Tidal energy
This document discusses tidal energy conversion and provides an overview of tidal power generation in Bangladesh. It describes four main methods of tidal power generation: tidal stream generators, tidal barrages, dynamic tidal power, and tidal lagoons. It also discusses the renewability, security, and efficiency of tidal power. Specifically for Bangladesh, it examines the potential for tidal power generation at Sandwip Island, where infrastructure like flood control barrages and sluice gates already exist and could be utilized for power generation through simple technologies like undershot paddlewheels.
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This document discusses various renewable energy sources including solar, wind, hydro, biomass, geothermal, and tidal energy. It describes how each source works to generate energy and provides examples of real-world applications. The document emphasizes that renewable sources are abundant, cause less pollution than fossil fuels, and are important alternatives to address issues like global warming.
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Tidal Energy
Tidal power, also called tidal energy, is a form of hydro power that converts the energy of tides into useful forms of power, mainly electricity.
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ALTERNATE AND RENEWABLE SOURCE OF ENERGY
Energy is defined as the ability or capacity to do work. There are two main types of energy sources - renewable and non-renewable. Renewable sources like solar, wind and hydro can be replenished naturally, while non-renewable sources like coal, oil and natural gas are finite and will eventually be depleted. Conservation of energy through more efficient use can help reduce consumption of conventional sources and promote sustainability.
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This document discusses tidal energy conversion and provides an overview of tidal power generation in Bangladesh. It describes four main methods of tidal power generation: tidal stream generators, tidal barrages, dynamic tidal power, and tidal lagoons. It also discusses the renewability, security, and efficiency of tidal power. Specifically for Bangladesh, it examines the potential for tidal power generation at Sandwip Island, where infrastructure like flood control barrages and sluice gates already exist and could be utilized for power generation through simple technologies like undershot paddlewheels.
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This document discusses various renewable energy sources including solar, wind, hydro, biomass, geothermal, and tidal energy. It describes how each source works to generate energy and provides examples of real-world applications. The document emphasizes that renewable sources are abundant, cause less pollution than fossil fuels, and are important alternatives to address issues like global warming.
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Hydro energy works by building dams to trap water from sources like lakes and rivers. The water builds up behind the dam, creating pressure. When released through tunnels with turbines inside, the water's pressure turns the turbines to generate electricity. Hydro energy has zero emissions and low operating costs once dams are built, but dams are very expensive to construct and can impact local environments. It provides a more sustainable alternative to power stations that burn fossil fuels and release greenhouse gases, as seen when comparing a coal-powered station to a hydroelectric dam. The document recommends hydro energy as a better long-term energy source due to dwindling fossil fuel supplies and its lower environmental impact.
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This document provides an overview of hydroelectric power and hydroelectric power plants. It discusses:
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This document discusses food chains and food webs. It explains that a food chain traces the flow of energy from producers like plants through various consumer levels. Typically, food chains only have 3-4 trophic levels because only about 10% of energy is transferred between each level. A food web shows more complex trophic interactions, with many organisms consuming and being consumed by multiple other species. The document also notes that harmful chemicals can biomagnify and accumulate at higher trophic levels like humans, as they are absorbed throughout the food chain.
Tennis slide show
Tennis originated in 13th century French monasteries, where a ball was hit with an open hand over a rope. The game evolved to use gloves and paddles, then racquets. In the 1850s, vulcanized rubber allowed outdoor grass court play with bouncing balls. Major Walter Wingfield popularized modern lawn tennis in the late 1800s with portable equipment. Major tournaments began in the late 1800s, with Wimbledon and the US Open among the earliest. Tennis remains popular globally, including in India where players have achieved success in grand slams and Davis Cup play.
8th mt ppt
The document describes a quiz competition with 3 rounds:
Round 1 involves identifying images.
Round 2 includes multiple choice questions (MCQ).
Round 3 is a buzzer round where teams can buzz in to answer questions.
The document provides examples of MCQ's asked in Round 2 about Indian social reform movements in the 19th century, related to issues like widow remarriage, the home rule movement, female infanticide, and child marriage. It also provides the answers to sample questions asked in Round 3 to test knowledge of individuals and organizations involved in social reform efforts during that time period.
Visualising solid shapes
this is a presentation on shapes and map and is also about the map which is drawn in maths in chapter of solid shapes.
History of Delhi
The document summarizes the history of Delhi from its early names to the establishment of New Delhi by the British in the 1920s. It mentions that 14 capitals were founded in the area before the Mughal emperor Shah Jahan built Shahjahanabad in the 17th century, making it the most splendid capital. After gaining control in 1803, the British allowed the Mughal emperor to continue living in the Red Fort but Delhi declined. The British then decided to build New Delhi as the capital of British India south of Old Delhi, appointing Lutyens and Baker to plan the new city.
Assembly presentation
The Commonwealth Games is an international multi-sport event held every four years involving athletes from countries that were formerly part of the British Empire. The first Games were held in 1930 and include sports like athletics, swimming, diving, shooting, cycling, boxing, table tennis, basketball, volleyball and gymnastics.
History of calcutta
Kolkata was originally three villages that were developed by the British East India Company into a colonial city and capital of British India until 1911. It grew rapidly in the 19th century as a center of both British imperial rule and Indian cultural awakening known as the Bengal Renaissance. Problems from rapid urbanization began affecting Kolkata in the 1930s and it remains an example of the challenges faced by developing world cities.
3 d shapes
This document defines and provides examples of polyhedrons, which are 3D shapes with polygon faces. It lists common polyhedrons like cubes, cuboids, spheres, cones, and cylinders. It provides the key definitions of vertices, faces, and edges. Examples are given for cubes, cuboids, pyramids, cylinders, and cones showing their number of faces, edges, and vertices. Nets for representing the shapes of cubes, cuboids, pyramids, cylinders, and cones are also described.
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9
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