Demographics - statistical data relating to the population., Demographers - people who study population trends by looking at 3 processes: births, deaths, and migration, Causes for Population Explosion - better sanitation, preventive medicines, longer life expectancies, decrease in infant mortality, Most Populous Country in 2018 - China, Projected to be the most Populous Country by 2050 - India, Less Developed Countries (LDCs) - countries at a relatively low level of economic development, More Developed Countries (MDCs) - countries with higher levels of economic developed - typically industrialized and having advanced technology, Population - The number of people in an areas, Resources - Materials that are used by humans, Census - The official way governments gather information about their populations (usually every 10 years) - it is a periodic count of the number of people living in an area., Natural Increase Rate (NIR) (aka - Natural Growth) - A number that tells us how quickly a population is naturally increasing or decreasing every year. (Determined by Birth Rates and Death Rates only), Formula for Natural Increase Rate (NIR) - (Crude Birth Rate - Crude Death Rate) / 10 = ________, Net Migration Rate (NMR) - The number of people coming into or leaving a country every year, Formula for Net Migration Rate (NMR) - Immigration - Emigration = _______, Population Growth Rate (aka - overall growth) - Represents population growth from births, deaths, and migration., Baby Boom - Period of time when there is a large increase in the birth rate, Population Pyramid - A bar graph representing the distribution of population by age and gender. Allows countries to predict and plan for their future populations., Arithmetic Density - The total number of people divided by the total land area. This is what is usually thought of as population density., Formula for Arithmetic Density - Total # of people divided by Total Land Area, Ecumene - permanently inhabited areas of the earth's surface, Physiological Density - The number of people per unit of area of arable land, which is land suitable for agriculture., Formula for Physiological Density - Total # of People divided by Total Area of Arable Land, Arable Land - land that can be used to grow crops / land suitable for agriculture, Land Capacity - maximum amount of food land can provide, Carrying Capacity - the number of people that can be supported in an area given the technology of production, Agricultural Density - The ratio of the number of farmers to the total amount of land suitable for agriculture, Low Agricultural Density - A country with a large amount of arable land and a small number of farmers. Uses LITTLE human resources for food production and can therefore have more SPECIALIZED labor, High Agricultural Density - A country that has a lot of farmers in proportion to their amount of arable land. This means they use most of the human resources for farming., Fertility Rate - Number of births per 1000 women (sometimes expressed as the average amount of kids born to each woman), Infant Mortality Rate - Number of deaths under one year of age among 1000 live births per year,

Population Review

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