Estimate the values without using outside information. Your response must be between 0 and 100.
1. The area of the USA is what percent of the area of the Pacific Ocean?
2. What percent of the world's population lives in either China, India, or the European Union?
3. What percent of the world's airports are in the United States?
4. What percent of the world's roads are in India?
5. What percent of the world's countries have a higher fertility rate than the United states?
6. What percent of the world's telephone lines are in China, USA, or the European Union?
7. Saudi Arabia consumes what percentage of the oil it produces?
8. What percentage of the world's countries have a higher life expectancy than the United States?