Birthrate<br />Is the number of births for every 1,000 people.<br />In economically developing countries, the birthrate is high.<br />In wealthy industrialized countries, the birthrate is low.<br />
Challenges to Population Growth<br />World food production has risen to meet the demands on every continent except Africa.<br />However, rapidly growing populations are facing shortages of freshwater, housing, and clothing.<br />
Negative population growth<br />In some countries, the death rate is higher than the birthrate.<br />Countries like this often recruit workers from other countries to supplement their workforce.<br />
Population Density<br />The Earth’s people are not evenly distributed over available land.<br />Most live by freshwater sources and in temperate climates.<br />Population density measures the average number of people living on a square mile of land. <br />
Population Density Continued<br />Population density formula:<br />Population of a country<br />Total land area of a country<br />Canada: 8 ppl per sq. mi.<br />Bangladesh: 2,401 ppl per<br /> sq. mi.<br />Belgium and Niger both have a population of 10.3 mil. But, Belgium is smaller (872 ppl per sq. mi.) and Niger is larger (21 ppl per sq. mi.)<br />
Population Movement (migration)<br />More people are moving to urban areas looking for better jobs, education, and healthcare.<br />½ the world’s ppl live in urban areas.<br />Ppl also migrate from other countries for greater economic opportunities and political freedom.<br />
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