AQA Science GCSE Biology Text Book-
For many thousands of years people lived on the Earth in quite small numbers. There were only a few hundred million of us! We were scattered all over the world, and the effects of our activity were usually small and local. Any changes could easily be absorbed by the environment where we lived.
But in the last 200 years or so, the human population has grown very quickly. At the end of the 20th century the human population was over 6 billion, and it is still growing.
If the population of any other species of animal or plant had suddenly increased in this way, natural predators, lack of food, build up of waste products or disease would have reduced it again. But we have diacovered how to grow more food than we could ever gather from the wild. We can cure or prevent many killer diseases. We have no natural predators. This helps to explain why the human population has grown so fast.
Not only have our numbers grown hugely, but in large parts of the world our standard of living has also improved enormously. We use fossil feuls like oil to produce electricity. We also use it to move about in cars, planes, trians and boats at high speed and to make materials like plastics. We have ore than enough to eat and if we are ill we can often be made better
----------------------------------------------------------------------------------------------
Overpopulation (also called overinhabitation) refers to a condition where an organism's numbers exceed the carrying capacity of its habitat. In common parlance, the term usually refers to the relationship between the human population and its environment, the Earth.[1]
Overpopulation is not a function of the size or density of the population. Overpopulation is determined using the ratio of population to available sustainable resources. If a given environment has a population of ten, but there is food or drinking water enough for only nine, then that environment is overpopulated; if the population is 100 individuals but there is enough food, shelter, and water for 200 for the indefinite future, then it is not. Overpopulation can result from an increase in births, a decline in mortality rates due to medical advances, from an increase in Immigration, a decrease in emigration, or from an unsustainable biome and depletion of resources. It is possible for very sparsely-populated areas to be overpopulated, as the area in question may have a meager or non-existent capability to sustain human life (e.g. the middle of the Sahara Desert or Antarctica).
The resources to be considered when evaluating whether an ecological niche is overpopulated include clean water, clean air, food, shelter, warmth, and other resources necessary to sustain life. If the quality of human life is addressed, there may be additional resources considered, such as medical care, employment, education, electricity, proper sewage treatment and waste disposal. Overpopulation places competitive stress on these basic life sustaining resources, leading to a diminished quality of life.[2]
Some countries have managed to increase their carrying capacity by using technologies such as modern agriculture, desalination and nuclear power. Some economists, such as Thomas Sowell[3] and Walter E. Williams[4] have argued that poverty and famine are caused by bad government and economic policies, not by overpopulation. In his book The Ultimate Resource, economist Julian Simon argued that higher population density leads to more specialization and technological innovation, and that this leads to a higher standard of living. Others argue that overpopulation is an important cause of these problems[2][5].
The decrease in the Gila monsters population is mainly due to habitat loss from urbanization, agriculture, and mining activities, as well as fragmentation of their habitat from roads and development. Additionally, illegal collection for the pet trade and being killed by humans due to fear and misunderstanding have also contributed to the decline in their population.
Habitat loss and fragmentation, as humans clear land for agriculture, infrastructure, and urban development. Overexploitation of natural resources, such as deforestation, overfishing, and groundwater depletion. Pollution from industrial activities, agriculture, and waste disposal, which can degrade air, water, and soil quality. Introduction of invasive species, which can outcompete native species and disrupt ecosystem balance.
The distribution of the population according to the different types of occupations is referred to as the occupational structure. Occupations are generally classified as primary (agriculture, mining, fishing, etc.), secondary (manufacturing industry, building and construction work, etc.) and tertiary (transport, communications, banking, etc.). The proportion of people working in different activities reflects the economic development of a country. Developed nations have a high proportion of people in secondary and tertiary activities. Developing countries tend to have a higher proportion of their workforce engaged in primary activities.
Yes, the Neolithic Revolution marked the transition from hunting and gathering to farming, leading to surplus food production in some cultures. This surplus allowed for population growth, the development of settled communities, and the emergence of more complex social structures.
The major resources of the world can be classified into natural resources and human resources. Natural resources include water, minerals, fossil fuels, forests, and arable land, which are essential for energy, agriculture, and industrial processes. Human resources refer to the skills, knowledge, and labor of individuals that drive economic activities and innovation. Together, these resources are vital for sustaining economies and supporting the global population.
The population of Industrial Development Corporation of Norway is 32.
The population of Industrial Development Corporation of Norway is 2,007.
Agriculture became mechanized.
It provided food for the population to expand.
The improvement of medicine and the medical field led to the population growth during the Industrial Revolution. Also, the up in agriculture led to the growth.Ê
Well agriculture has a lot to do with cultrualization, and with culturalization we have got a lot of new technology. and with ecocenturisum that has affected the global population by new data to charts
Mainly Pakistan is an agricultural country. over 70% of the population of Pakistan is engaged with agriculture. Main cities have very large industrial setups but mainly Pakistan can't be referred as an industrial country.
high population agriculture industry and development contruction commercial purpose and etc............................................................................';'';................................
The development of agriculture in the Neolithic times was important because it allowed people to transition from a nomadic lifestyle to settled communities, leading to the development of permanent settlements and the growth of population. Agriculture also provided a stable food source, enabling societies to advance culturally and technologically.
Although most of the population works on the services and commerce sector, a large segment to the population works on agricultural activities; these include subsistence agriculture. There is also some manufacturing industry in southern Mexico, specifically, textiles, furniture and food processing, however the majority of industrial activities are concentrated on extractive industries, such as mining and forestry.
The population of NOIDA (New Okhla Industrial Development Authority) is estimated to be around 0.6 - 0.7 million.
William Henry Newell has written: 'Population change and agricultural development in nineteenth century France' -- subject(s): Agriculture, Economic aspects of Agriculture, History, Population