Saturday, February 29, 2020

Aqa Exam

Certificate of Education Advanced Level Examination January 2012 Geography Unit 3 Contemporary Geographical Issues 1. 30 pm to 4. 00 pm Monday 30 January 2012 For this paper you must have: ? an AQA 12-page answer book. You may use a calculator. GEOG3 Time allowed ? 2 hours 30 minutes Instructions Use black ink or black ball-point pen. Pencil should only be used for drawing. ? Write the information required on the front of your answer book. The Examining Body for this paper is AQA. The Paper Reference is GEOG3. ? Answer three options: one from each Section. In Section C, you must not answer the same option as those chosen in Sections A and B. ? Use sketch maps, diagrams and specific examples, where appropriate. ? Do all rough work in your answer book. Cross through any work that you do not want to be marked. ? Information The marks for questions are shown in brackets. ? The maximum mark for this paper is 90. ? You will be marked on your ability to: – use good English – organise information clearly – use specialist vocabulary where appropriate. ? ? Advice You are advised to spend about 45 minutes on each of Sections A and B and about 60 minutes on Section C. H/Jan12/GEOG3 GEOG3 Section A Answer one option from this section. You must not answer the option that you will answer in Section C. Option 1 Plate Tectonics and Associated Hazards Total for this option: 25 marks 0 1 Study Figure 1 which shows the relationship between shaking intensity (measured by the Mercalli Scale) and different types of building structure. Describe and comment on the information provided. Figure 1 MERCALLI SCALE (7 marks) Type of building structure Adobe (baked mud and clay) Unreinforced masonry Reinforced masonry (non-seismic design) Steel framed buildings Reinforced masonry (seismic design) VI (Strong) VII (Very Strong) VIII (Destructive) IX (Ruinous) X (Disastrous) 8 22 50 100 100 3. 5 14 40 80 100 1. 5 5. 5 16 38 66 0. 4 2 7 20 40 0. 3 1. 5 5 13 25 Source: US Geological Survey The numbers are the percentages of buildings damaged or collapsed. 0 2 Outline the features of seismic waves. (8 marks) 0 3 Evaluate the management strategies adopted following one earthquake that you have (10 marks) studied. H/Jan12/GEOG3 3 Option 2 0 4 Weather and Climate and Associated Hazards Total for this option: 25 marks Study Figure 2 which shows changes, compared with 1961 – 1990 averages, in temperature, sea level and northern hemisphere snow cover. This information came from the Intergovernmental Panel on Climate Change (IPCC) in 2007. Describe and comment on the changes shown. Figure 2 (7 marks) 0. 5 Difference from 1961 – 1990 average temperature ( °C) (a) Global average surface temperature 0. 0 – 0. 5 (b) Global average sea level 50 Difference 0 from 1961 – 1990 – 50 average level – 100 (mm) – 150 (c) Northern hemisphere snow cover Difference from 1961 – 1990 average area (million km2) 4 0 –4 1850 1875 1900 1925 Year 1950 1975 2000 Source: Intergovernmental Panel on Climate Change – Assessment Report 4 (2007) 5 Describe the possible effects of global warming on a tropical region that you have (8 marks) studied. Discuss the responses to global warming on an international scale. (10 marks) Turn over ? 0 6 H/Jan12/GEOG3 4 Option 3 Ecosystems: Change and Challenge Total for this option: 25 marks 0 7 Study Figure 3 which shows variations in plant and fly species in different grazing areas on Salisbury Plain, a grassland area in southern England. Much of this area is used by livestock farmers. Describe and comment on the variations shown. (7 marks) Figure 3 0 60 50 Number of species 40 30 20 10 0 Ungrazed Grazed by cattle over a long time Grazed by sheep over a long time Recently grazed by cattle Recently grazed by sheep Key Plant species Fly species Types of grazing Source: Topic Eye: Ecosystems and Biodiversity; publisher – Cross Academe Limited 0 8 Outline the characteristics of the temperate deciduous woodland biome. (8 marks) 0 9 Assess the extent to which one local scale ecological conservation area that you have (10 marks) studied has been successful. End of Section A H/Jan12/GEOG3 5 Section B Answer one option from this section. You must not answer the option that you will answer in Section C. Option 4 World Cities Total for this option: 25 marks 1 0 Study Figure 4, a photograph of a central urban area that has recently undergone redevelopment. Comment on the features of the area shown. (7 marks) Figure 4 Source:  © Cameron Dunn 1 1 Outline the process of counter-urbanisation and describe its effects. (8 marks) 1 2 Discuss the planning and management issues that have arisen in areas that have (10 marks) undergone urbanisation in recent years. Turn over H/Jan12/GEOG3 ? 6 Option 5 Development and Globalisation Total for this option: 25 marks 3 Study Figure 5 which shows the estimated percentage of population by country that used the internet in 2009. Comment on the extent to which it supports the concept of the North/South divide. (7 marks) Figure 5 Key Estimated percentage of the population that used the internet 40 or more 30 – 39 20 – 29 10 – 19 Less than 10 Source: www. internetworld stats. com 1 4 Outline reasons for the growth of social and/or economic groupings of nations. (8 marks) 1 5 Discuss the consequences of groupings of nations. (10 marks) H/Jan12/GEOG3 7 Option 6 Contemporary Conflicts and Challenges Total for this option: 25 marks 1 6 Study Figure 6 which shows the percentage of employed people living on less than US $1. 25 a day in each of 1997 and 2007 for selected regions. Comment on the information shown. (7 marks) Figure 6 Sub-Saharan Africa Southern Asia Oceania South-Eastern Asia Eastern Asia Western Asia Latin America and the Caribbean Northern Africa Developed regions Developing regions 0 10 20 30 % Source:  © United Nations 2009 – United Nations: Millennium Development Report 2009 Key 1997 2007 40 50 60 70 1 7 Suggest reasons for the existence of global poverty. (8 marks) 1 8 Discuss how poverty can be addressed on a global scale. (10 marks) End of Section B Turn over H/Jan12/GEOG3 ? 8 Section C Answer one option from this section. You must not answer the option answered in either Section A or Section B. Note to Candidate You should bear in mind that the essay questions below are synoptic in nature. In your response to these questions you are required to show your knowledge and understanding of different aspects of geography, the connections between these different aspects and, where relevant, of human perspectives upon geographical themes and issues. Option 1 1 9 Plate Tectonics and Associated Hazards To what extent can preparedness and planning mitigate the effects of volcanic hazards? 40 marks) Weather and Climate and Associated Hazards To what extent can preparedness and planning mitigate the effects of tropical revolving (40 marks) storms? Ecosystems: Change and Challenge ‘The characteristics of the vegetation of tropical biomes are more the outcome of continued human activity than a response to the climatic conditions. â€⠄¢ With reference to one tropical biome, discuss the extent to which you agree with this (40 marks) view. Option 4 2 2 World Cities To what extent can urban areas be sustainable? (40 marks) Option 2 2 0 Option 3 2 1 Option 5 2 3 Development and Globalisation To what extent can development be sustainable? 40 marks) Option 6 2 4 Contemporary Conflicts and Challenges With reference to a conflict over the use of a local resource that you have studied, discuss the extent to which all interest groups involved can be satisfied with its outcome. (40 marks) END OF QUESTIONS ACKNOWLEDGEMENT OF COPYRIGHT-HOLDERS AND PUBLISHERS Permission to reproduce all copyright material has been applied for. In some cases, efforts to contact copyright-holders have been unsuccessful and AQA will be happy to rectify any omissions of acknowledgements in future papers if notified. Copyright  © 2012 AQA and its licensors. All rights reserved. H/Jan12/GEOG3

Wednesday, February 12, 2020

Stem Cell Research Legislation Paper Example | Topics and Well Written Essays - 1500 words - 3

Stem Cell Legislation - Research Paper Example Humans have two types of stem cells, which include adult and embryonic stem cells. Embryonic cells come blastocyst’s inner layer. The adult stem cells are located in various tissues with varying potency. Potency of the stem cells indicates the number of cell types that can differentiate from the stem cells (Solo & Gasil, 2007). Embryonic cells are said to be pluripotent meaning they differentiate to form an array of tissues. This has attracted a controversial debate on the use of embryonic stem cells for treatment as well as research. This paper will explore the history of stem cell legislation in the US as well as compare this legislation to other statutes in the world. It will also elaborate on the current statutes concerning stem cell as well as the future of these statutes. The policies and laws on stem cell in the USA have undergone various, complicated changes over the years. Adult stem cells were first used for the treatment of leukemia in 1970. However, because of thei r limited potency, their use in research and treatment is limited. The debate on the use of embryonic stem cells is attributed to the fact that these cells are obtained from live embryos produced in the lab (Bellomo, 2006). The controversial issue surrounding this debate is the question on when life begins in humans. This is because some argue that the embryos created in the lab are humans and with rights to live. History on Legislation Roe Wade legalized abortion in the US in 1973. Five years after this, scientists and physicians delivered the first human following in vitro fertilization. These created the need for the federal government to enact policies and laws that restricted the use of public funds in the research of embryonic stem cells. All through history, there were no laws barring stem cell research in the USA (DeGette, 2008). However, the government put a restriction on the funding of the research based on stem cells. During President’s Clinton administration, the National Health Institute advised the government to permit the use of public funds for research on embryos. However, Clinton citing various moral and ethical issues declined to issue funds for this research. Furthermore, Clinton signed the Dickey Amendment in 1995 which forbade the use of federal money in funding the research on human embryos. The use of human embryonic stem cells for research featured significantly during Bush’s first term in office. In February 2001, he requested for the review of the NIH request concerning federal funding for research on the stem cells. Later on in August 2001, Bush issued a ban on the use of public funding in the research of human stem cells (DeGette, 2008). He argued that the creation and abortion of fetuses for the purpose of research was destroying human life and thus, should be avoided. In an effort to lift this ban, both 109th and 110th Congresses passed Bills to life the ban. However, both bills were vetoed by Bush using his Presid ential powers. The 109th Congress also passed a Bill that banned the creation and destruction of human embryos for research purpose (DeGette, 2008). In 2005, the House passed the Stem Cell Enhancement Act which sought to allow the allocation of federal funds to research on human embryonic stem cells. The Presidential vetoed the Bill; therefore, it was never enacted into law. Later on, in 2006, Senate passed the Bill but the President did not approve it. In 2007, the legislation on stem cell research

Saturday, February 1, 2020

Why Abortion is Immoral Essay Example | Topics and Well Written Essays - 1000 words

Why Abortion is Immoral - Essay Example Marquis’s objective in his essay â€Å"An Argument that Abortion Is Wrong† is to show that the ending of a pregnancy before birth is a crucial breach of ethics. The author supports the prohibition of abortion since it counters certain aspects of life ethically. He trusts that a fetus is an existing being and has the right to live. In the thesis, the writer says that the right to life overrides that of self-body control; thus abortion is wrong. The article also shows that human beings try to exclude fetuses as living beings, but Don Marquis criticizes that point by describing a fetus as being living within another organism. The author also attacks pro-choice’s belief that only people have the privilege to live by pointing out that there is no means to confirm that a fetus is not a person. However, he agrees that in particular circumstances abortion is valid. According to Don Marquis, abortion is morally legal in cases such as when the pregnancy endangers the life of the mother, it is fourteen days and below after conception or rape. Generally, the author’s persuasive argument lies in the fact that the act of abortion is wrong since it involves killing a human being just like any other. Based on traditional, ethical and religious laws in conjunction with the law of nature, every living being has a right to life. For that reason, I believe that an abortion is a wrong thing to do, especially to an innocent person. I agree with Don Marquis’s notion that abortion is an immoral act unless the circumstances revolving around the pregnancy counter other moral aspects. Ethical theories dictate that people have a social responsibility to look after incapacitated human beings. An incapacitated person refers to an individual who lacks the ability to live normally or do ordinary things since they lack certain cognitive aspects.