1. Подставьте предложенные словосочетания в предложения endangered species rural greenhouse effect sMog global warming fossil fuels nature reserve urban green sewerage system 1. ........................... is the gradual rise of temperature in many parts of the world. 2. A/An ....................... is one which is under threat of extinction. 3. Something that is ......................... , such as a product, is not harmful to the environment. 4. ........................... is an unpleasant mixture of of smoke and fog hanging over a city. 5. Something that is .......................... is related to the countryside, rather than the town or a city. 6. The ......................... is caused by the sun’s heat being trapped by gases in the Earth’s atmosphere. 7. The ......................... is the pipes and facilities for taking dirty water from homes and factories, usually to be treated. 8. A/An ......................... is an area where wildlife is specially protected. 9. Something that is ........................ is related to the town or the city, rather than the countryside. 10. ........................ include coal, gas and oil.