RENEWABLE ENERGY In simple terms Renewable Energy‚ as its name implies‚ is energy that is renewable—it is naturally replenished and is the energy that is derived from nature itself like water‚ sunlight‚ wind etc. Most of the energy used before the start of the Industrial Revolution was renewable energy. The beginning of the Industrial Revolution led to an increase in the demand for coal‚ and as a result‚ it replaced most of the “bio mass” used by humanity. With the discovery of oil‚ renewable energy
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What it is: • the deposition of acidic components in rain‚ snow‚ dew‚ or dry particles. • more accurate term is "acid precipitation." • defined as any type of precipitation with a pH that is unusually low The Causes: • occurs when sulfur dioxide and nitrogen oxides are emitted into the atmosphere‚ undergo chemical transformations and are absorbed by water droplets in clouds • then fall to earth as rain‚ snow‚ mist‚ dry dust‚ hail‚ or sleet. • Dissolved carbon dioxide dissociates to form weak
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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 herself
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global energy demand‚ finite natural resources and environmental issues‚ are thus intensifying the search for sustainable‚ clean‚ renewable and eco-friendly alternatives to fossil fuels (Venkata mohan et al.‚ 2008). Renewable energy can be defined as energy that comes from constantly replenished resources such as sunlight‚ rain‚ wind‚ hydropower and fuel cells. Renewable bioenergy is considered one of the new ways to resolve the current global warming problem. Renewable energy generation and waste disposal
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What is acid rain? Rainfall made sufficiently acidic by atmospheric pollution that it causes environmental harm‚ typically to forests and lakes. What chemicals make rain acidic‚ and how does it happen? Besides water‚ and carbonic acid (from carbon dioxide dissolved in the rain droplets)‚ the primary components of acid rain are sulfuric acid‚ which comes from sulfur dioxide derived from the burning of coal‚ and nitric acid‚ which from nitrogen emissions. Where do these chemical come from?
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depth using any conventional monocular 2D camera‚ with minor hardware modifications. Our approach targets close-range human capture and interaction where dense 3D estimation of hands and faces is desired. We use hybrid classification-regression forests to learn how to map from near infrared intensity images to absolute‚ metric depth in real-time. We demonstrate a variety of humancomputer interaction and capture scenarios. Experiments show an accuracy that outperforms a conventional light fall-off
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Snapshot Thursday May 3‚ 2012 Kayapo: Out of the Forest The documentary Kayapo: Out of the Forest is about Kayapo tribes in Brazil. These tribes come together to unite against an architectural project that may take place on the Xingu River. This architectural project is the building of a dam. The Kayapo are very much against the project because the dam will end up flooding their land. In order to protest the dam‚ the Kayapo come out of the forest and go to Altamira to protest the dam along with
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WATER RESOURCES The sources of water that are useful to human life are called water resources. Uses of water include agricultural‚ industrial‚ household and recreational activities. The majority of human uses require fresh water. 97 percent of the water on the Earth is salt water and only 3 percent is fresh water; slightly over two thirds of this is frozen in glaciers and polar ice caps. The remaining unfrozen fresh water is found mainly as groundwater‚ with only a small fraction present above
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Forest Growth report-1 A timber cruise is a sample measurement using an instrument to estimate the stand basal area. The measurements are taken from plots or quadrants‚ laid out in a random fashion. Using the timber crutch‚ hold the brass ball for the selected area under your eye and extend the Crutch away until chain is tight. Trees that appear wider than the width of the plastic are big enough or close enough to be counted. An advantage of this particular tool is its ability to correct for
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for the Forest Ranger 1 Series Andrew M. Cuomo Governor INTRODUCTION The New York State Department of Civil Service has developed this test guide to familiarize you with the Forest Ranger 1 written test. This test guide provides a general description of the subject areas to be tested and an explanation of the different types of questions that will be presented. The examination announcement will list the subject areas that will be included on the test you will be taking. The Forest Ranger 1
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