GAS WELDING Gas welding is a process that use fuel gases and oxygen to weld and cut metals. Uses: 1-welding and cutting metals 2-in Stone Work for flaming 3-in the glass industry for fire polishing 4-in jewelry production How we use it : The apparatus used in gas welding consists basically of an oxygen source and a fuel gas source it’s pumped through hoses and get out to cut or weld the used metal and there are two cylinders one of them contain oxygen and we can control
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CASE STUDY ON POLLUTION IN VELLORE: SOURCES AND MEASURES TO CHECK IT. SOURCES AND METHODS TO REDUCE POLLUTION IN VELLORE Shraddha Sahu and Akshay Ahuja B.tech- Electronics and communication Engg.‚ SENSE‚ VIT UNIVERSITY‚ Vellore‚ Tamil Nadu – 632014 Email id- shraddha.sahu2012@vit.ac.in ABSTRACT: Vellore‚ also known as ‘fort city’ and a historical destination in southernmost India ‚ is one of the
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Pollution an undesirable human activity to mother nature M.V€£ KŮMĄŔ 1121231 MBA - K Earth What is pollution ? When Harmful Substances Contaminate the Environment it is Called Pollution. Pollution refers to the very bad condition of environment in terms of quantity and quality . Types of Pollution Air Pollution Water Pollution Land Pollution Noise Pollution Radio Active Pollution Causes of Air Pollution Major sources of Air Pollution - Industries
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are at the alarming rate. If there is nothing done about it‚ Vietnam will soon suffering the consequences. This paper is to give the audience a clearer view of air pollution in Vietnam including reasons‚ affects and suggesting solutions. 2. Discussion of finding 2.1 Reasons 2.1.2 Motor vehicles There are several causes of air pollution; the vast majority of them can be attributed by man. Many people are unaware of the serious problems they expose to the world by letting such dangerous chemical
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Place INDOOR AIR POLLUTION Children’s Health and the Environment WHO Training Package for the Health Sector World Health Organization www.who.int/ceh July 2008 version 1 Indoor Air Pollution Indoor LEARNING OBJECTIVES LEARNING TO UNDERSTAND‚ RECOGNIZE AND KNOW: Hazards of indoor air pollution to children’s health Different toxicants in indoor air‚ according to sources‚ settings and activities Characteristics and issues relating to indoor air pollution in industrialized
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Environmental pollution The nature is the most wonderful thing in the world. It gives us its loveliness to enjoy and to admire. The nature provides us with its riches: water and air‚ soil‚ mineral resources‚ flora and fauna‚ forests and fields. Nowadays situation is very bad‚ but just someone understand it. It means that many species of flora and fauna have already disappeared or are disappearing because of harmful actions of people. People have always polluted their surroundings. But until
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Sound is essential to our daily lives‚ but noise is not What is Noise Pollution? The traditional definition of noise is “unwanted or disturbing sound”. Sound becomes unwanted when it either interferes with normal activities such as sleeping‚ conversation‚ or disrupts or diminishes one’s quality of life. It is a source of irritation and stress for many people and can even damage our hearing if it is loud enough. Many of us are exposed to stressful levels of noise at home and at work. Noise is
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1. INTRODUCTION Environmental Pollution is the most important threat to the human race on this planet today. Environment consists of earth‚ air‚ water‚ flora and fauna. It means adding impurity which threatens the life of flora and fauna to the environment. These impurities are mainly created by man-made activities. The impurity can be air‚ water‚ land any sort of thermal radiation‚ etc. As we moving towards globalization there is rapid increase in industrialization and technological growth which
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Pollution‚ contamination of Earth’s environment with materials that interfere with human health‚ the quality of life‚ or the natural functioning of ecosystems (living organisms and their physical surroundings). Although some environmental pollution is a result of natural causes such as volcanic eruptions‚ most is caused by human activities. Sidebars | SIDEBAR | Climate Change 2001:The Scientific Basis | The Intergovernmental Panel on Climate Change (IPCC) is an international group of scientists
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WHAT YOU CAN DO ABOUT PLASTIC POLLUTION Plastic bags and bottles‚ like all forms of plastic‚ create significant environmental and economic burdens. They consume growing amounts of energy and other natural resources‚ degrading the environment in numerous ways. In addition to using up fossil fuels and other resources‚ plastic products create litter‚ hurt marine life‚ and threaten the basis of life on earth. We are producing over 25 million tons of plastics per year in the United States‚ a trivial
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