Unknown Story
Kuvakäsikirjoitus Teksti
- Today forests cover about 30% of land. Every year this figure decreases more and more
- Water pollution is another serious problem.Plants and factories reiease harmful substances.
- Due to the development of industry , harmful substances enter the atmosphere and heat the sky.
- Global worming is the result of human activity .
Yli 30 miljoonaa kuvakäsikirjoitusta luotu