This quiz addresses population size. Population size matters because it helps determine people’s collective impact on the environment, as well as how much people pay for everyday goods like food and gas. It also affects the economic and political power of nations because people can become workers and soldiers.


1. How many people currently live on planet Earth?


2. On what single continent is the majority of the world’s population located?


3. What nation has the largest population in the world?


4. What nation has the second most people in the world, and is fast approaching China in population size?


5. What about the United States of America? The USA is a politically, economically and culturally influential nation, but what is its population size?