#2

I picked Afghanistan and New Zealand because they have several differences in their population.
New Zealand has a variety of people and cultures living there. As for Afghanistan, their people and culture consists of very few. Afghanistan is LDC because it is one of the most poorest countries in the world. Also, because of years of neglect and conflict, that has impacted its development as a country and its people. Life expectany is around 46-50.

New Zealand is MDC because it is a well developed country and just look at the population! There is about 50 thousands 0 years of age to 80. Looking at Afghanistan the populatoin doesn't increase, it just decreases.
If you look at New Zealand's population at 45-50 it is about 140 thousand! New Zealands population increases because of its good environment and culture.