1. The smog caused by the cars.
2. The smog caused by the fabrics.
3. Pollute caused of throw trash in the incorrect place.
4. Throw away the water.
5. Kill animals indiscriminately.
6. Cut trees indiscriminately.
7. Throw toxic waste in the sea and rivers.
8. The expansion of the cities.
9. Global warming.
10. Bad nutrition.
Smog is a serious problem around the world, the pollution generated by causes serious health problems and therefore must be stopped, or at least diminished.
ResponderEliminarRionda Mata Mirna.