biomass power such as wood or muscle. The ancient ecosystem whose energy is now stored as fossil fuels. The moon’s gravitational energy is responsible for the ideal effect‚ which give rise to tidal power. The earth itself is the key source of energy such as the following: Gravitational energy for hydroelectric power Chemical energy for nuclear power‚ electro- chemical reaction and hydrogen fuel cells. Geothermal power from the heat of lower crust. Other exciting energy sources
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Every individual has responsibility to use natural resources judiciously. This will give equal opportunity to all to use the resources for the benefit of mankind. One should not be selfish to spend the available resources without thinking of other fellow beings. There is no limit to spend natural resources if available plenty but at the same time one should realize that natural resources are non-renewable sources. The future also depends on such resources. Every individual should think himself or
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CE : Section 5 Fossil Fuels 1. 93 1(c) Alkenes can be obtained from petroleum fractions by a process called ’cracking’. Using a suitable petroleum fraction‚ a student carried out this process in the laboratory and collected the gaseous product over water. (i) What is ’cracking’ ? (ii) Draw a labelled diagram of a laboratory set-up that can be used for carrying out the process and collecting the gaseous product. (iii) An important safety precaution in the experiment is to prevent sucking
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average temperature of the Earth caused by increasing concentrations of greenhouse gases produced by human activities‚ such as deforestation‚ use of fertilizers‚ fossil fuel combustion and cement production. According to the global warming theory‚ the intensification of industrial activities during the twentieth century (based on the fossil fuel combustion such as petrol and coal) increased the concentration of CO2 in the atmosphere. The increase of the global temperature and the new composition of the
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the atmosphere becomes worse and worse. Air pollution is the pollution can make people live with huge danger and bad moods. In cities‚ the largest source air of pollution comes from burning fossil fuels. Cars‚ heavy duty trucks‚ trains‚ airplanes‚ shipping vessels all burn a large amount of fossil fuels to work. Emissions from vehicles contain many pollutants. Dangerous gases such as carbon monoxide and oxides of nitrogen which are released by vehicles may cause great harm to people. It can cause
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In 2013‚ 82% of human-produced greenhouse gas emissions were carbon dioxide (Nasa climate change). This resulted from the burning of fossil fuels‚ solid waste‚ trees‚ wood‚ and other chemical reactions. The biggest reason is because of the burning of fossil fuels this includes driving your car and nuclear power plants. Another greenhouse gas‚ methane‚ comes from landfills‚ coal mines‚ oil‚ natural gas operations‚ and agriculture. It represented
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submitted by : Baljinder singh. Ways to Tackle The Problem Of Global Warming. The world is suffering from many worrying threats. Global warming is one of those . Global warming is increase in temperature due to the pollutants added to the air which imbalance the nature.Here we discuss some reasons why global warming occurs and will also discuss some solutions to tackle this problem. Since the mid ninteen sixties environmentalism has exploded as a movement . Many environmentalists view modern industrial
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i CHAPTER 36: ENVIRONMENTAL CONCERNS LECTURE OUTLINE 36.1 Human Use of Resources A resource is anything from the biotic or abiotic environment that helps meet certain basic human needs. Nonrenewable resources are limited in supply. Renewable resources are not limited in supply. A side effect of resource consumption can be pollution. Land Use Change People need a place to live. Beaches and Human Habitation At least 40% of the world population lives within 100 km of a coastline
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CASE STUDY TEAM B SCI/362 2 February 2015 JULIET KNOWLES Case Study Feasible alternative fuel development is essential to sustainable resource management and the alternatives to fossil fuels as presented in Watershed offers promise and hope critical to the survival of our ecosystem. Brief History Before the Industrial Revolution‚ the human species relied on the sun for heat along with biomass (typically firewood) straw and dried animal dung
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that run on biodiesel get thirty percent better fuel economy than gasoline-powered vehicles (Perritano). The many forms of biofuels make it easier to obtain and use. Biofuels are better for the environment because they reduce greenhouse gas emissions. For example‚ ethanol reduces greenhouse gas emissions up to sixty-five percent (Perritano). Biofuels are a source of energy from plants that can help fuel our vehicles and our lives. A biofuel is any fuel that is made from plant material. Many biofuels
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