How much of the earth is built on?

Related questions

1. Can I move to Australia without a skill?
2. Are birth rates increasing or decreasing?
3. How much of China is uninhabited?
4. Can you move to Canada with no money?
5. Why does Australia lose fertility?
6. How many species can kill you in Australia?
7. How many people over 65 are in Australia?
8. What food do they eat in Australia?
9. What country owns Australia?
10. Who really discovered Australia?

Tags

1. #areas
2. #least
3. #indicate
4. #urban
5. #estimates
6. #grump
7. #increase
8. #roughly
9. #total
10. #previous
11. #surface
12. #earth
13. #occupied