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Tartu Miina Härma gymnasium Biogas The source of future energy Report Tartu 2010 Table of Contents Introduction......................................................................................................... What is biogas?................................................................................................... Producing process............................................................................................... Nowadays............................................................................................................ Areas where biogas is used in............................................................................. Biogas as replacement of fuel.......................................................................... Other benefits..................................................................................................... Healt
Social Problems Crime In the sociological field, crime is the breach of a rule or law for which some governing authority or force may ultimately prescribe a punishment. The word crime originates from the Latin crimen. When society deems informal relationships and sanctions insufficient to create and maintain a desired social order, there may result more formalized systems of social control imposed by a government, or more broadly, by a State. With the institutional and legal machinery at their disposal, agents of the State can compel individuals to conform to behavioural codes and punish those that do not. Various mechanisms are employed to regulate behaviour, including rules codified into laws, policing people to ensure they comply with those laws, and other policies and practices designed to prevent crime. In addition are remedies and sanctions, and collectively these constitute a criminal justice system. Not all breaches of the law, h
Water pollution Attention for water pollution exploded in the 1980s. The oil spill of the Exxon Valdez showed many around the world just how horrible the effects of water pollution could be. However, even the Exxon Valdez spill barely touched the surface of the problem of water pollution. The ship spilt only 5% of the oil spilt that year, and oil is just one of many pollutants that people dump into the water every year. Every year, 14 billions pounds of sewage, sludge, and garbage are dumped into the world's oceans. 19 trillion gallons of waste also enter the water annually. The problem of ocean pollution affects every nation around the world. This is especially true because water is able to transport pollution from one location to another. For many years, chemicals were dumped into bodies of water without concern. While many countries have now banned such behavior, it continues to go on today. As the world has industrialized and its population has grown, the problem of water poll
Table of contents 1. Introduction 2. History 2.1. Early Hospitals 2.2 Recent developments 3. The National Health Service 4. Diseases 5. First Aid 6. Medicine and elements of medical care 7. Doctors 8. Ways of keeping health 9. Conclusion 10.Used materials 1. Introduction The human body is just like a machine with many parts. Each part has a special job, and all the parts work together to keep you alive and healthy. Good health is one of the most important things in life. There are certain things we can do to stay healthy. We should eat a balanced diet that includes the right kinds of food and drink plenty of clean, fresh water. We should exercise regularly, strengthening our muscles and keeping us in shape. Exercise helps the blood circulate around our bodies, cleaning out waste and supplying plenty of oxygen. It is also important what we get enough sleep. The number of hours we sleep we need depend on our age. Young babies sleep for 20-22 hours
Third World countries are often described as "developing" while the First World, industrialized nations are often "developed". A lack of material wealth does not necessarily mean that one is deprived. A strong economy in a developed nation doesn't mean much when a significant percentage (even a majority) of the population is struggling to survive. Politics have led to dire conditions in many poorer nations. In many cases, international political interests have led to a diversion of available resources from domestic needs to western markets. This has resulted in a lack of basic access to food, water, health, education and other important social services. This is a major obstacle to equitable development. Poverty has also been described as the number one health problem for many poor nations as they do not have the resources to meet the growing needs. But poverty is not restricted just to developing countries. Industrialized nations are also seeing a sharp increase in poverty. While th
Health 2007 1. Introduction Health is the level of functional or metabolic efficiency of an organism at both the cellular and social level. In the medical field, health is commonly defined as an organism's ability to succesfully respond to challenges and effectively restore and keep a so-called ,,state of balance". 2. History · Early hospitals During the Middle Ages the hospital could serve other functions, such as an almshouse for the poor, or hostel for pilgrims. In ancient cultures, religion and medicine were linked. The earliest known institutions aiming to provide cure were Egyptian temples. Greek temples dedicatedto the healer-god, might admit the sick, who would wait for guidance from the god in a dream. The Romans adopted this worship. The Sri Lankans are perhaps responsible for introducing theconcept ofdedicated hospitals to the world. According to an ancient chronicle, written in the 6 th century A.D., a king had lying-in homes and hospitals b
Human overpopulation Liis Lukk MJ15 What is overpopulation? • Overpopulation is an undesirable condition where the number of existing human population exceeds the carrying capacity of Earth. • Human overpopulation is among the most pressing environmental issues • Overpopulation can result from an increase in births, a decline in mortality rates, an increase in immigration, or an unsustainable biome and depletion of resources • Human population has been rising continuously since the end of the Black Death, around the year 1350 • The most significant increase has been since the 1950s, mainly due to medical advancements and increases in agricultural productivity • The recent rapid increase in human population over the past three centuries has raised concerns that the planet may not be able to sustain present or future numbers of inhabitants. Loss of Fresh Water • Most of the freshwater resources are either unreachable or too polluted
ENVIRONMENTAL PROBLEMS Our environment is constantly changing. However, as our environment changes, so does the need to become increasingly aware of the problems that surround it. With a massive influx of natural disasters people need to be aware of what types of environmental problems our planet is facing. Current environmental problems make us vulnerable to disasters and tragedies, now and in the future. Unless we address the various issues seriously we are surely doomed for disaster. Current environmental problems require urgent attention. 1. Pollution: Pollution of air, water and soil require millions of years to recoup. Industry and motor vehicle exhaust are the number one pollutants. Heavy metals, nitrates and plastic are toxins responsible for pollution. While water pollution is caused by oil spill, acid rain, urban runoff; air pollution is caused by various gases and toxins released by industries and factories and burning of fossil
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