What does it mean population growth for developed and developing countries?

Answer 1

Population Growth is a term used to say how a country's population, or amount of living humans, grows within a certain amount of time. The number can be positive, negative, or break even (balanced).
Developed Countries, such as the United States of America, Canada, and Great Britain, are countries with electricity, technology, some form of health care for its citizens, proper waste disposal, and/or general infrastructure. (Dictionary.com's definition of infrastructure: "The basic facilities, services, and installations needed for the functioning of a community or society, such as transportation and communications systems, water and power lines, and public institutions including schools, post offices, and prisons.")
Developing Countries are countries that are usually in Africa or countries defined as "third-world" countries. They lack what developed countries have, especially the very basics of infrastructure.
In developed countries, the population usually is slightly positive (about +.1%, maybe +.3% in some cases) or breaks even. This means that the population grows very slowly. In developing countries, the numbers are negative. In Trinidad and Tabago, the 2008 growth rate estimate was approximately -.89%.
Developing countries have negative numbers because of war, disease, famine, infant death syndrome, low life expectancy rates, and other factors.
Population growth should be even between males and females. Population pyramids can best display the way males and females are distributed in a country.
For an example, you can look at the link posted at the bottom of this page.

The United States population pyramid states the following for 2000:
Males and Females over 80 years old:
Males: 3 million. Females: 7 million
The males have a significantly lower rate because that age group experienced war. Males in the United States are drafted during war, so many of the male population died.
After war, people have the instinct to repopulate so there are small "baby booms", meaning a jump in the number of babies.
Males and Females 45-49 years old:
Males: 11 million. Females: 11.5 million.
This age group has a similar number of males and females, as it is required in a working society.

Answer 2

Population growth in developed countries is typically slower due to lower birth rates and higher life expectancies, leading to an aging population. In contrast, developing countries tend to have higher population growth rates driven by higher birth rates, resulting in younger populations and greater strain on resources.