Population a concerned topic


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Population a concerned topic

  1. 1. Population
  2. 2. What is meant by population? A population is a summation of all the organisms of the same group or species, who live in the same geographical area, and have the capability of interbreeding. In sociology, population refers to a collection of human beings.  Demography is a social science which entails the statistical study of human populations and make predictions about how a population will change .
  3. 3. Population Growth The worlds population is growing rapidly The population of the world is growing at an exponential rate- its growing faster and faster. There are two things that affect the population size of the world: Birth rate- the number of live babies born per thousand of the population per year. Death rate-the number of deaths per thousand of the population per year. When the birth rate is higher than the death rate, more people are being born than are dying so the population grows this is called Natural increase whereas when the death rate is higher than the birth rate it is called the Natural decrease.
  4. 4. Countries go through 5 stages of population growth • These are shown by the Demographic transition model: • Poorer, less developed countries are in the earlier stages of the DTM, whilst richer more developed countries are in the later stages.
  5. 5. Managing rapid population growth Social Rapid population growth has social, economic and political impacts. • Services like healthcare and education cant cope with the rapid increase in population , so not everyone has access to them. • Children have to work to help support their large families , so they miss out on education. • There aren't enough houses for everyone, so people are forced to live in makeshift houses in overcrowded settlements. This leads to health problems because the houses aren't always connected to sewers or they don’t have access to clean water. • There are food shortages if the country cant grow or import enough food for the population. Political • Most of the population is made up of young people so the government focuses on policies that are important to young people e.g. education and provision of things such as childcare. • There are fewer older people so the government doesn’t have to focus on policies that are important to older people e.g. pensions. • The government has to make policies to bring population growth under control so the social and economic impacts of rapid population growth don’t get any worse. Economic • There aren't enough jobs for the number of people in the country so unemployment increases. • There is increased poverty because more people are born into families that are already poor.
  6. 6. Population Growth in India India has more than 50% of its population below the age of 25 and more than 65% below the age of 35. India occupies 2.4% of the world's land area and supports over 17.5% of the world's population. Per the 2001 census 72.2% of the population lives in about 638,000 villages and the remaining 27.8% lives in more than 5,100 towns and over 380urban agglomerations. The demographics of India are inclusive of the second most populous country in the world, with over 1.21 billion people, more than a sixth of the world's population. Its population growth rate is 1.41%.
  7. 7. Problems aroused due to over population and its Impacts on: Environment Pollution – increase in cars and emission of greenhouse gases into atmosphere Deforestatio n – increase in paved areas to house increasing population Freshwater Availability – increase in waste production and contaminati on of water Natural Resources – increase burning of fossil fuels, excess ive use of coal Global Warming – overall increase in temperature and chances of natural disasters Habitat Loss – change in ecosystems affecting tropic levels
  8. 8. Problems aroused due to over population and its Impacts on: Forest and Freshwater Freshwater Availability • Misconception of Oceans as freshwater • Human Bodies – 60% water • Sewage deposited in water • Health problems • Per Capita Water Use Forests Area • Urbanization – more paved areas • Less parks and nature • Lack of Oxygen production • Increase Quantity of Carbon Dioxide (Greenhouse Gases) • Global Warming
  9. 9. The different strategies to control rapid population growth • Countries need to control rapid population growth and they also need to develop in a way that allows people of today to get the things they need without stopping people in the future getting what they need. And here are some ways or policies and how they help to achieve sustainable development. Birth control programmes Birth control programmes aim to reduce the birth rate. Some governments do this by having law about how many children couples are allowed to have. Governments also help couples to plan ( and limit) how many children they have by offering free contraception and sex education. This helps towards sustainable development because it means the population wont get much bigger. Immigration laws Immigration laws aim to control immigration (people moving to a country to live there permanently). Governments can limit the number of people that are allowed to immigrate. They can also be selective about who they let in e.g. letting in fewer people of child bearing age means there will be fewer immigrants having children.
  10. 10. Take Home a Message • Because this is an inevitable problem we must raise people’s awareness and environmental stewardship to lessen the effects of overpopulation. • Focus on the present, but have in mind the future, thus we must start changing our actions now to foresee the future we want!
  11. 11. Efforts by : NIHARIKA JAIN – 25 AYUSHI JINDAL – 7 RADHIKA ARORA – 30 ALL OF 8th A