1. Two examples of public transport is the bus and the subway.
2. CFC gases are dangerous because they can affect the people's respiratory system.
3. I think I can do my homework, for example.
4. nu stiu aici
5. The four ways of producing electricity is by using dams with water, by using thermal energy, eolian energy and green energy.
6. Air quality is made worse by pollutants, such as cars and fossil fuels.
Sper ca te-am ajutat!
