1. Do you know the density of population in this area?

2. Japan has a high density of population.

3. According to the passage, the density of population is not incompatible with the high standard.

4. The density of population in this city is very high.

5. Right now, the average density of population on Earth is 25/km2.

6. Nowhere else has the density of population and the transport demand like ours.

7. This is more likely if increasing wealth is matched by increasing population and increasing density of population.

8. It was also one of the most polluted(Sentence dictionary), both because of insufficiently controlled industrial emissions and its high density of population.

9. The introduction of the plough made possible much greater density of population, concentrated in villages and manors.

10. On spatial, there are high pollutants concentrations in active economic areas with high density of population.

11. This means at a population growth rate of 2.0 percent per year the average density of population in the world will double every thirty-five years.

12. If the population of the world doubles, then the average density of population also doubles, since the area of the world's surface stays the same.

13. And this has already been an inevitable trend of history development. The question of "land deficit" exists in the littoral zone area of high density of population.

14. Regulation of self- thinning is that relationship between DBH and average density of population accords with negative power function.

15. In that case, if the growth stays where it is, how long will it take for the average density of population to become 18 600/km2?