# Ledc's and Medc's

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With reference to named countries, how and why do birth rates, death rates and life expectancy vary between LEDC’s and MEDC’s? Birth rates, death rates and life expectancy vary from country to country The birth rate of a country is the ratio of total live births to total population in a specified community or area over a specified period of time. The death rate of a country is the ratio of total deaths to total population in a specified community or area over a specified period of time. Life expectancy is the number of years that an individual is expected to live as determined by statistics. Infant mortality rate is the death rate during the first year of life. Birth and death rate affect the population of a country. If a country has a low death rate, this suggests that it has high life expectancy. There are many factors that affect the birth and death rate of a country, these factors varying from political to religious reasons. They all contribute to the total population. MEDC’s tend to have a sparse population density, and LEDC’s tend to have a dense population. Population density is the number of people living in a given area, usually a square km. In order to work out the population density of a country you need to divide the total population by the total area of the country. The population in MEDC’s is high but not growing. This is because they do not have a high birth rate, and their death rate has fallen below the birth rate. An example of this is shown in countries like the UK or USA. Both countries have a very low national increase (UK has a national increase of 4 per 1000). The UK has a total birth rate of 13 per 1000 and the USA has a total birth rate of 14 per 1000. The low birth rates in both countries is mainly impacted by the fact that in MEDC’s, there is better access to good