Arrange the parts of the text according to the plan:
1. Introduction
2. What environmental problems are the most serious in your country
3. What causes ecological problems
4. What can people do to protect the environment
5. Conclusion

• People are very much concerned about ecological problems nowadays.

• Air pollution makes it difficult to breathe and leads to health problems. Air pollution is caused by many factors. Different means of transport burn fossil fuels and emit harmful gases into the atmosphere. Factories and plants also let out smoke in industrial areas.

  Deforestation means the loss of natural habitats for animals and birds. Fewer trees produce less oxygen that adds to bad ecological situation. The reason for deforestation is the need of new farmlands and residential areas. Besides, trees are a valuable resource for producing paper, furniture and building materials.

  Landfill sites cover huge territories near towns and cities. They produce harmful gases and poison the soil. Few recycling facilities in the country cannot solve the problem of growing waste.

• The most serious of them in this country are air pollution, deforestation and huge landfill sites situated near towns and cities.

• To protect the environment we have to develop electric means of transport, equip factories with air filters, plant new trees and improve the recycling industry.

• In conclusion I have to say that we must do everything possible to make our planet clean.