Global Warming
> Global Warming can be defined as the term used to refer to the fact that the average temperature around the earth is increasing. > Global Warming is caused by many different factors which are mostly as a result of human activities such as the burning of fossil fuels like coal, oil and wood which produce carbon dioxide > The excess Carbon Dioxide that is released in the atmosphere is also contributed by the emission of fumes by factories and motor vehicles. The extra carbon dioxide therefore creates a 'blanket' around the earth resulting in the rapid increase of temperature > Over the past century there has been a marked increase in the concentration of he Greenhouse gases. Greenhouse Gases include carbon dioxide, water vapour, methane, nitrous oxide and ozone. > The Green house gases are also play a huge role in global warming as these gases trap the heat that would otherwise escape to into space. This is called the greenhouse effect > Deforestation is also another cause of global warming because when the excess amount of trees are cut down and not replanted, there becomes an increase in Carbon Dioxide concentration in the atmosphere as there are no trees to use it for respiration. This Carbon dioxide therefore plays a role in global warming as it begins to trap heat on the earth's surface. Consequences of Global Warming > Global warming results in many changes in
Global warning!
Global Warning! It has been estimated that the whole world could be under water within a century if nothing is done to combat the phenomenon, which is Global Warming The once natural paradise, the Antarctic, is now associated with destruction. For the wildlife itself, the melting glaciers and the breakdown of the ecosystem must seem like a hell on earth. One of these creatures is the awesome polar bear. It make be the top carnivore within its food chain and is able to swim a hundred miles at a time however we have caused the dramatically decreasing numbers of this animal, so much so that it has been place on the endangered species list. Polar bears generally breed twins at a time and provide an ice den for their offspring so that they can adapt to the surroundings, learning to eventually fend for themselves. This is no longer possible, once again because of the human race. We are filling our once clean atmosphere with too many pollutant gases, not only making it more toxic but also thickening the atmosphere. As a result it is harder for heat to escape and the world's average temperature rises. This increase has caused large parts of the Antarctic to melt already and if nothing is done to stop it escalating, then this area may have to be removed from our map of the globe. Do not underestimate this eventuality and it will cause the peril of the human race too.
Cholera - its global impact
Cholera Cholera is an infectious disease caused by the bacterium Vibrio cholera, which usually spreads through contaminated water. It affects the absorption of water in the small intestine and in severe cases produces severe diarrhoea. The most dangerous aspect of Cholera is the immense loss of fluid that can occur within a few days. Without treatment within 24 hours of developing the disease, the loss of fluid can be fatal. Many cases, such as those in Zimbabwe, require hospitalisation of infected people so that fluids can be administered straight into the bloodstream with the use of a drip. Cholera bacteria occur naturally in coastal waters, where they attach to tiny crustaceans called Copepods. The Cholera bacteria travel with the Copepods, spreading worldwide as the crustaceans follow their food sources, which are certain types of algae and plankton. These grow rapidly when the water temperatures rise and algae growth is further increased by the urea found in sewage and agricultural runoff. Therefore most Cholera outbreaks occur in spring and autumn when ocean surface temperatures and algae blooms are at their highest. More algae mean more Copepods, and more Copepods mean more Cholera bacteria. The map on the left shows that the areas that Cholera is discovered in are situated below the Brandt line. This is because these areas are surrounded by warm oceans where the
English as a global language - good or bad?
English as a Global Language - Good or Bad? English, which is spoken by 1.9 billon of the world's population as their first language, has been spreading rapidly in the world since the British Industrial Revolution and colonialism in many continents such as Asia, Africa and North America during the 18th century. As the influence of English is increasing, some linguists think that it is a natural process of successful international communication. However, many other languages are also dying out at an accelerating rate because of the expansion of the English language. In discussing the issue of the growing influence of English; arguments, both for and against, should be considered, particularly, in the economic, the information exchange, the linguistic aspects and the aspect of alteration, unity and differentiation. In this context the English language is accused of being a killer language that wipes out smaller languages as well as the cultures they represent. Scientific researchers have found out that in fact many small languages have already vanished, such as Xam, a Southern Khoisan language used by hunter gatherer communities of Southern Africa (source E). English may not be the world's most widely spoken native language, as Chinese, with 1151 million mother tongue speakers, nearly double the number of English mother tongue speakers (source D). Although as Mandarin is the
How far do physical factors affect global population distribution?
Global Population Distribution by Atif Khan 10S How far do physical factors affect global population distribution? Global Population Distribution is the spread of people across the world. It can be an even spread or an uneven spread, and it depends on physical and human factors. Human factors include transport, infrastructure, government and employment. Physical factors are climate, relief, water supplies, soil type and resources. Across the world's surface area, most people are living in only small sections of land. This is because not all land has an equal potential for life. Examples of countries with very large populations are India and China. 2 in 6 people across the globe are either Indian or Chinese! However, in a country such as Afghanistan this population density is much lower. We will first study the physical factors that affect population. We will begin with climate. Average Annual Temperatures are important factors of population distribution. If the weather is too hot or too cold, people won't be able to live there. However, if there are no extremes of climate like this, countries are more likely to do well. An example of this is Western Europe. However, extremes of climate are not the only type of climate to affect population distribution. If a country is cold, for example, people are usually more likely to spend money on housing to provide shelter, using up
Transformation Patterns. Our aim was to take different 3 digit number patterns and make a pattern that was instructed in the worksheet, and then find a correlation between the pattern of numbers and the line of symmetry and the order of rotation.
TRANSFORMATION INVESTIGATION BY Naman Shah & Aman More Aim: Our aim was to take different 3 digit number patterns and make a pattern that was instructed in the worksheet, and then find a correlation between the pattern of numbers and the line of symmetry and the order of rotation. For example if the number chosen was X,Y,Z then we were first supposed to take a starting point, and facing up the page go x square forward and turn 90 degrees clockwise. Then we were to go y squares forward and turn 90 degrees clockwise and then go z square forward and turn 90 degrees. We were to repeat these instructions until we got the starting point. Methodology: We used the software MSWLOGO to create the shapes using the number patterns and formulae to repeat the pattern. Our formula basically gave the instructions: repeat (move x units forward, then turn 90 degrees, now move y units forward, then again turn 90 degrees, finally move z units forward and turn 90 degrees) 4 times. This caused the pattern to be repeated until the time it got back to the starting point (the small square). Using observation, we found the number of lines of symmetry (if any) for each shape, along with the order of rotation. We used this process on 28 patterns using different combinations of numbers. Note: There were many instances where there was line of symmetry. Patterns: Data table: Pattern Numbers
Describe the global growth and geographical distribution of human population. Discuss the impacts that this growth has on both land and water resources?
Environmental Science 36E1 People and the Environment Autumn 2002 Student 1117083 Environmental Science 36E1 People and the Environment Autumn 2002 Student 1117083 Essay Title: Describe the global growth and geographical distribution of human population. Discuss the impacts that this growth has on both land and water resources? In the year 1999 the worlds population reached the 6 billion mark and the United Nations predict that by the year 2025 this will rise to 8 billion with a further rise in 2050 to 9.3 billion before it starts to stabilise at about 10.5 / 11 billion. (Fig 1.0) This exponential growth is a phenomenon that has only really come about during the last three hundred years or so. During prehistoric time the growth of the global population was very slow. However in the last 350 years, human population has dramatically increased, with most estimates indicating that about 90% of the worlds population growth has occurred during this time. Looking at the growth rate on a global scale we can form many opinions relating to the reasons for such an increase. The population growth can be directly attributed to advancements in health care, and hygiene that has resulted from scientific developments that have occurred from the mid eighteenth century to the present day. Such advancements have enabled crude mortality rates to decrease and life expectancy to increase
Evaluate different sociological explanations for patterns and trends of health and illness in two different social groups
Evaluate different sociological explanations for patterns and trends of health and illness in two different social groups Chances of becoming ill and even dying are linked to several factors which include social class, gender, age and ethnicity. The two social groups I have chosen to compare are social class and gender. I will talk about how these social groups affect health issues and explain the sociological perspectives and the patterns and trends. Social class and patterns of health and illness Social class is the ranking of people based on their occupation, education, income and manners. It is said that the higher your social class, the healthier you are. Poverty and inequality in society have effects on the social, physical and mental well-being of an individual. These two factors are closely linked. The infant mortality rate - IMR - for children born to poor parents are higher than that of a child born to rich parents. People from a higher social class are much less likely to die of conditions such as cancer, heart diseases and strokes and also tend to live longer compared to others. The Black Report - which was introduced in 1980 - examined the health differences of people by dividing the population into five social classes and provides information on how social and environmental factors of health and illness and life expectancy are linked to one another. This
The Growth and Importance of English as a Global Language.
The Growth and Importance of English as a Global Language The definition of a global language, is a language which has been given a specific place within countries and communities around the world, even in places where there are very few native speakers of this language. Although English is not the most widely spoken language in the world in terms of the number of native speakers - there are many more native Chinese speakers than native English speakers - it is described as a 'global language' and Chinese is not. This is because there are few other communities in the world that give Chinese, be it Mandarin or Cantonese, a particular use or function, probably due to the fact that its alphabet is so different from that which is used in the majority of the rest of the world. It is impossible to know exactly how many English speakers there are in the world, but according to estimates, there are more than 350 million native English speakers and more than 400 million speakers of English as a second, or foreign, language. These figures are especially impressive considering the fact that this mass popularity only came about in approximately the last three centuries. The English language's influence spans across the globe and is more influential in the world of media, communication, business and government than any other, even in certain countries where English is used, or regarded,
I will be explaining the patterns and trends within social groupings such as Social Class & Gender, Ethnicity and Locality.
P3 I'm Anna Smith, in my report I will be explaining the patterns and trends within social groupings such as Social Class & Gender, Ethnicity and Locality. The Black Report and The Health Divide identify the health inequalities that existed in the 80's in relation to social class based on the Registrar Genera's Social Class with high morality rates being seen in the lower social classes' e.g. unskilled and manual workers. Life expectancy nowadays, at birth remains less for those in the lower social classes for males more than female than in the professional and managerial classes. Even though life expectancy at birth has rose for social classes over the past thirty years, inequality has rose. In the year 2004 life expectancy at birth were 77 years for male and 81 years for women. In 1996, the variation in life expectancy at birth between social classes was significant both for both female and male. For male, the variation in life expectancy at birth involving those in the Registrar General's Social class I (profession al) and those in Class V (unskilled manual) was 9.5 years. For female the change 6.4 years. Even though life expectancy at birth was altered over the past 25 years, a differential remains and statistics portray that related patterns are evolving for female as for male, though it is essential to retain that allocating social class to married women is
