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Guinea has the highest birth rate, with 15% of its population in the 0–4 age group. This is likely because of higher fertility rates, limited access to family planning, and a younger population overall. Canada’s birth rate is lower at 4.7%, which is common in developed countries where people tend to have fewer kids due to things like cost of living and waiting longer to start families. South Korea has the lowest birth rate at just 2.5%, likely because of social and economic pressures like expensive living, long work hours, and delayed marriage. In short, Guinea has the highest birth rate, followed by Canada, while South Korea has the lowest.

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Canada has the highest percentage of people aged 75 and older at 8.9%, which shows that people there tend to live longer, probably because of good healthcare and living conditions. Korea is close behind at 8%, also showing a fairly high life expectancy. On the other hand, Guinea only has 1.1% of its population over 75. This likely means that people there don’t live as long, possibly because of weaker healthcare and other difficulties. Overall, Canada and Korea seem to have better conditions that help people live longer compared to Guinea.

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Guinea, Canada, and South Korea all have different total dependency loads, which show how many people rely on those who are working. Guinea has the highest at 44.3%, mostly because a large part of its population—40.8%—is under 15. This means it has a very young population and might struggle to provide enough schools, resources, and jobs as these kids grow up. Canada’s dependency load is 35.1%, and about 20% of the population is over 65. This shows Canada has more older people who will need healthcare and support. South Korea has the lowest dependency load at 30%, with fewer young people (10.7%) but a lot of older adults (19.3%). This means Korea’s population is aging fast, and it could face problems in the future if there aren’t enough workers to support the economy.

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1. Birth Rate:
Birth rate is the number of babies born each year for every 1,000 people in a country. It helps show how fast the population is growing.

2. Life Expectancy:
Life expectancy is the average age a person is expected to live. It depends on things like healthcare, nutrition, and overall living conditions in a country.

3. Dependency Load:
Dependency load is the percentage of people who rely on others to support them, usually children under 15 and adults over 65. A higher dependency load means more pressure on working-age people to provide for the rest.

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The differences between countries happen because each place is really different when it comes to things like money, healthcare, culture, and living conditions. Richer countries usually have better hospitals, education, and jobs, so people live longer and have fewer kids. In poorer countries, there might not be as much healthcare or access to family planning, so birth rates are higher and people don’t live as long. Also, some cultures encourage big families, while others don’t. All these things affect how populations grow and change around the world.

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Why is it important or useful to look at this information now and in the future? 

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It’s important to look at changing population data because it helps us understand what a country might need now and later on. For example, if there are a lot of young people, the country will need more schools, teachers, and jobs in the future. If there are more older people, they’ll need more healthcare and support. Looking at things like birth rate, life expectancy, and dependency load helps us see what kinds of problems or needs might come up. This way, governments and communities can be better prepared and make smarter choices for everyone’s future.