1.air pollution
2.anywhere with industrial factories and vehicle which ,in fact, take place mostly in the city and few in urban
3. It's the consequences from products of the factories and wasted from cars.
4.It's caused the problem of contamination in air which is result of hardly for animals to survive and further the long term caused, changes in climate and global warming then.
5. Used alternative energy instead of natural resources could be one of the solutions.
6.Solving air pollution problem could give essential to mankind either do other animals.