→

1.There is a shortage of clean water in this clean country.

2.Children living in slums often malnutrition from suffer.

3.Over population is a serious problem,isn't it?

4.Over population is causing more problems than we can imagine.

5.Over population is one of the main reasons causing air pollution.

6.There is less traffic and air pollution in countryside.

7.Mumbai is one of the most densely populated cities in the world.

8.Traffic congestion in becoming a major huge problem for many cities.

Chúc học tốt!