Complete each sentences with one of the words in the box. Use each word only once: pollutants, decreasing, protect, interference, extinct, endangered, set up, rest, result, enviroment 1. Dinosaurs became....millions of years ago 2. She tried to...herself from the wind 3. This species of birds is....in number every year 4. The chemical....from cars and factories make the airs, water and soil dangerously dirty. 5. The blue whale is a .......species 6. Because of the....of human beings, many animals have become extinct 7. Some people think that we are not doing enough to protect the....from pollution 8. They have ....a fund for saving the wildlife in the area 9. Regular exercise can....in a loss of weight 10. One-third of the class are doing very well,the....are only average.