II. Choose the word whose main stress pattern is placed differently.
1. A. environment B. temperature C. botanical D. contaminant
2. A. untreated B. aquatic C. pollution D. electronic
3. A. pollute B. poison C. damage D. illustrate
4. A. presentation B. radioactive C. environmental D. contamination
5. A. permanent B. Chemical C. dramatic D. herbicide
III. Complete each sentence with an appropriate word. The first letter of each word is given.
1. The fish have died because the river water is heavily polluted________.
2. Health effects________ from air pollution include lung cancer, and respiratory diseases.
3. Acid rain causes serious damaged________ to plants and trees.
4. If the air wasn’t dirty, Nick wouldn't________ sneeze so much.
5. The main gases that leed________ to acid rain are sulfur dioxide and nitrogen dioxide.
6. There is a danger of serious contamination from radioactive waste________.
7. Hundreds of death________ fish were found floating in the river near the factory.
8. Using ________ sewage can spread disease and contaminate drinking water sources.