 Wysłany: Sob 2:17, 14 Maj 2011 Temat postu: World Population |
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Graph A: This stage is characterised by a decline in death rates,Practicing Golf During The Off Season,Tiffany Rings, although birth rates remain relatively high, and the boost in birth rates is as a result of amended sanitation,What Can Be Done About Our Inability apt Feel Comf,Tiffany Cufflinks Sale, improved medical care and increased food afford. From the chart this stage is described by the period 1400 to 1800 where the population size increases by larger margins deserving to low death rates. (Beaver, 1995) The chart beneath shows the population size because the year -8000 to 2050, data was retrieved from the U.S. Census Bureau database: class="MsoNormal" style="line-height: 200%;">Part 1:[/b] Stage 1 (-8000 to 1400): According to the demographic transition theory this stage is characterised by high birth and necrosis rates, from the chart during this period the population remained relatively settled and population alterations were relatively cheap, according to the theory high death rates are as a outcome of meager sanitation, lack of medicinal care and ailments. High birth rates are also apparent in this stage and this is for the human ambition to replace the dying population, they absence children to work and the lack of contraceptives to depress birth rates. (Beaver, 1995) According to the demographic transition theory the forth stage is characterised by birth rates lower than death rate, this levels threaten the societies today sample Germany where birth rates are relatively lower than death rates, this leads to a decline in population size, high death rates are due to lifestyle sicknesses such as obesity and low birth rates are due to increased contraceptive use and other birth control means. (Beaver, 1995) The upon blueprint can be subdivided into 4 stages along apt Beaver (1995) who interprets the demographic transition theory, these stages are argued below: Other factors namely explain this changes is war and diseases, from the chart the period 1900 to 1950 depicts one increase in population size but art a lower rate than previous years, this can be explained by the subsistence of campaign in this period, whereby the premier WW 1914 to 1918 demanded 15 million lives, the Stage 4 (1990 to 2050): Stage 2 (1400 to 1850): In stage 2 birth rates were still relatively high but in this stage improvements in medical care and the presentation of contraceptives lead to a decline in birth rates, additional factors that affect birth rates is that there is increased schooling of women, increased status of women in the society and therefore women are busy in additional activities of economy developed preferably than child birth, decline in the merit of children whereby in the past people needed kid to help in harvest activities but at this stage this claim declines, and finally decline in food supply reduces birth rates. (Beaver, 1995) Stage 3 (1850 to 1990): |
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