1. Dependency Load:

   Guinea has the highest (43.55%) because of a large number of kids.

   Canada is in the middle (32.8%) with more elderly people.

   Korea has the lowest (29.53%), meaning more of the population is working-age.

2. Birth Rate:

   Guinea has a large 0–4 age group, showing a high birth rate.

   Canada has a small 0–4 group, showing a low birth rate.

   Korea has the smallest 0–4 group, meaning the lowest birth rate overall.

3. Life Expectancy:

   Canada has the largest 75+ group, so people live longer.

   Korea has a moderate 75+ group, showing improving life expectancy.

   Guinea has the smallest 75+ group, showing low life expectancy.

Guinea is a developing country, so people have less access to healthcare, clean water, and education, which leads to a higher birth rate, lower life expectancy, and higher dependency load.

Canada is a developed country with strong healthcare, education, and social support, so people live longer, have fewer kids, and the population is slowly aging.

South Korea is also developed, but it’s dealing with a very low birth rate because of high living costs, work pressure, and changing family values, which lowers the dependency load now, but could cause issues in the future.