Conclusion

The world population is made up of the population of each country.

Countries with big populations can affect many political, environmental, economical and moral issues globally.

Here are some questions for further investigation:

When you or your family members vote for political leaders, what population philosophies would you support?
What about smaller countries with a moderate population?
Do you think they might have population problems?
How might a country's population problem affect the world?

The world population is constantly changing.

Ten years from now, you might even want to compare the actual data of the future to what you predicted today.