things. Pollution means is the contamination of air‚ soil or water by the discharge of harmful substances. There are different types of pollutions in the environment which has harmful effects. Every type of pollution has its own causes and consequences. The main types of pollution are Water Pollution‚ Air Pollution‚ Soil Pollution‚ Thermal Pollution‚ Radioactive Pollution‚ Noise Pollution and Light Pollution. All these pollution are collectively called as environmental pollution. Pollution today
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EARTH The earth is 4.5 billion years old. The Big Bang theory says that there was an explosion caused by the crash of matter which created our Solar System. Millions of years ago‚ during the Paleozoic era‚ the seven continents formed one single super-continent‚ from which they later detached driven by endogenous forces. Mankind appeared on Earth 30000 years ago. According to Darwin organisms which adapt the best to the environment they live in‚ survive the longest. Mankind become the dominant
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Pollution………. Our world is being polluted every day more and more with factories and cars. People are not realizing that this is hurting our world. Money won’t be able to fix that soon because money can’t grow trees or develop animals. We need to start making a real improvement in our world today; make it a better world to live in for the new generation. One way we could help is hybrid cars. One reason why these cars are better are because they have a battery pack that you can plug in and it
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solar energy‚ such as‚ solar thermal energy in order to establish a sustainable‚ clean‚ responsible and efficient form for energy for generations to come. While solar energy startup and even maintenance costs can be just as expensive as oil and coal production‚ solar energy is undoubtedly worth the price in the long run‚ even solely for the benefit of CO2 reduction. As far as using solar thermal energy locally‚ my hometown of Bloomington‚ Indiana currently uses solar thermal energy for various residential
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Loutfi Environmental education Pollution I. Definition Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our normal lifestyles adversely. II. Why it is dangerous? Pollution disturbs our ecosystem and the balance in the environment. With modernization and development in our lives pollution has reached its peak; giving rise to global warming and human illness. III. Types & Causes of Pollution A. Air pollution It occurs when any harmful
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Pollution is the introduction of contaminants into a natural environment that causes instability‚ disorder‚ harm or discomfort to the ecosystem i.e. physical systems or living organisms.[1] Pollution can take the form of chemical substances or energy‚ such as noise‚ heat‚ or light. Pollutants‚ the elements of pollution‚ can be foreign substances or energies‚ or naturally occurring; when naturally occurring‚ they are considered contaminants when they exceed natural levels. The major forms of pollution
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Introduction to Industrial Pollution Industrial pollution is pollution which can be directly linked with industry‚ in contrast to other pollution sources. This form of pollution is one of the leading causes of pollution worldwide; in the United States‚ for example‚ the Environmental Protective Agency estimates that up to 50% of the nation’s pollution is caused by industry. Because of its size and scope‚ industrial pollution is a serious problem for the entire planet‚ especially in nations which
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Daly‚ A. and P. Zannetti. 2007. An Introduction to Air Pollution – Definitions‚ Classifications‚ and History. Chapter 1 of AMBIENT AIR POLLUTION (P. Zannetti‚ D. Al-Ajmi‚ and S. Al-Rashied‚ Editors). Published by The Arab School for Science and Technology (ASST) (http://www.arabschool.org.sy) and The EnviroComp Institute (http://www.envirocomp.org/). Chapter 1 An Introduction to Air Pollution – Definitions‚ Classifications‚ and History Aaron Daly and Paolo Zannetti The EnviroComp Institute
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factors including: • Urbanization • Population growth • Economic growth • Intensification of agriculture Increase in energy use Causes of Environmental Pollution Increased and uncontrolled human activities like industries‚ transportation‚ agriculture‚ health care‚ dwelling‚ and energy generation are some of the causes of environmental pollution. Several industries like textile‚ steel‚ paper‚ sugar‚
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A mathematical model which is investigated the thermal and physical behavior of a dish/Stirling system is presented‚ then the system was designed‚ analyzed and optimized. There are many types of heat losses in the dish/Stirling system‚ such as convection and conduction heat losses and radiation heat losses by emission in the cavity receiver and reflection heat loss of solar energy in the parabolic dish. There are also internal and external conduction heat losses‚ energy dissipation by pressure drops
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