Answers

2016-07-04T22:56:11+08:00
1. Pollution
2. Global Warming
3. Climate Change

the other 2 are already included within the three. But it depends with in your community (where you live).
3 4 3
2016-07-07T16:53:10+08:00
Pollution Global warming Climate change The ate their in the changes
2 4 2