Environmental Issue Essay – The Greenhouse Effect The Greenhouse effect is a natural process that is imperative for our survival‚ warming the Earth’s surface. The sun emits energy that reaches the Earth’s atmosphere‚ some of it is reflected back to space whilst the rest is absorbed and re-radiated by greenhouse gases such as carbon dioxide‚ methane‚ water vapour‚ nitrous oxide‚ ozone and chlorofluorocarbons (CFCs’). The energy that is absorbed warms the atmosphere and the Earth’s surface maintaining
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Greenhouses allow for greater control over the growing environment of plants. Depending upon the technical specification of a greenhouse‚ key factors which may be controlled include temperature‚ levels of light and shade‚ irrigation‚ fertilizer application‚ and atmospheric humidity. Greenhouses may be used to overcome shortcomings in the growing qualities of a piece of land‚ such as a short growing season or poor light levels‚ and they can thereby improve food production in marginal environments
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INTRODUCTION Automated Greenhouse is about a design of miniature greenhouse that is equipped with the automated monitoring system. The system will constantly monitor the natural environmental conditions in the greenhouse to ensure that the plant will achieve the maximum plant growth. There are two sensors‚ which operate in the real-time‚ that will be used - temperature sensor and a humidity sensor to monitor the conditions. The microcontroller will compare the output of the sensors with the preset
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The greenhouse effect in is the entrapment of the sun’s heat energy in the earth’s atmosphere. Greenhouse gases such as carbon dioxide‚ water vapor‚ methane‚ and nitrous oxides are all gases that contribute to this phenomenon. Carbon dioxide is the most abundant greenhouse gas while water vapor the least harmful gas makes up less than one percent of the gases in the atmosphere. These greenhouse gases are produced naturally by the earth for example carbon dioxide‚ and methane is produced from the
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Why looks are the last bastion of discrimination In the 19th century‚ many American cities banned public appearances by "unsightly" individuals. A Chicago ordinance was typical: "Any person who is diseased‚ maimed‚ mutilated‚ or in any way deformed‚ so as to be an unsightly or disgusting subject . . . shall not . . . expose himself to public view‚ under the penalty of a fine of $1 for each offense." Although the government is no longer in the business of enforcing such discrimination‚ it still allows
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This essay is going to look at euthanasia. This will include an analysis of the theories and principles which guide healthcare practice and decision making‚ a discussion of the relevant codes of professional practice and the legislation that may guide practice and decision making. This essay will also include an evaluation of the effects of the ethical issue for the individual concerned‚ their family‚ health care workers and for wider society. Ethics are the principles on individual uses‚ in order
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Global warming is the observed increase in the average temperature of the Earth ’s near-surface air and oceans in recent decades and its projected continuation. Global warming poses an extraordinary challenge. The world ’s leading atmospheric scientists tell us that a gradual warming of our climate is underway and will continue. This long-term warming trend poses serious risks to our economy and our environment. It poses even greater risks to many other nations‚ particularly poorer countries that
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Greenhouse Gases: Carbon dioxide (CO2) is a greenhouse gas in the atmosphere that may raise average temperatures on Earth. The burning of fossil fuels could be responsible for the increased levels of carbon dioxide. If current trends continue‚ future concentrations of atmospheric carbon dioxide in parts per million (ppm) could reach the levels shown in the accompanying table. The CO2 concentration in the year 2000 was greater than it had been at any time in the previous 160‚000 years. Year 2000
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Michael Phan Mrs. Dunn Ap English October 10‚ 2010 Balancing Life “Constantly Risking Absurdity” describes the struggle within to find beauty and value in the process of writing poetry. Lawrence Ferlinghetti describes a poet’s struggle and strength in trying to find balance on a rope he stands on. Not only is he risking absurdity‚ but he is also risking death. The poem deals with trying to find meaning and his concerns of criticism and failure. Ferlinghetti doesn’t only depict an acrobat’s
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GREENHOUSE EFFECTS IntroductionThe greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases‚ and is re-radiated in all directions. Since part of this re-radiation is back towards the surface and the lower atmosphere‚ it results in an elevation of the average surface temperature above what it would be in the absence of the gases.[1][2] Solar radiation at the frequencies of visible light largely passes through the atmosphere to
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