1. Train, bus
2. CFC gases destroy the ozone layer of our planet.
3. On a working holiday we can do several seasonal jobs, such as: cleaning, fruit picking or other short term work.
4. We can recycle plastic bottles, paper, metal.
5. We can produce electricity by using the power of the wind, the Sun, the water or nuclear power.
6. People pollute the air with car emissions, factories.