1. What’s a ______________? It’s a subtance that contaminates something. (POLLUTE) 2. Scientists say that exhaust fumes are ______________ our city. (POISON) 3. Many seabirds were ______________ because of the oil spill. (DIE) 4. Waste from households will gradually ______________the lake. (CONTAMINATION) 5. Trees can’t grow here because the soil is too ______________. (POLLUTE) 6. That dierce storm left behind badly ______________buildings. (DAMAGE) 7. The fish are floating in the water. (DIE) 8. Don’t drink that water. It’s ______________. (CONTAMINATE) 9. The acid rain has caused ______________to the trees in this area. (DAMAGED) 10. If we ______________the air, more people will have breathing problems. (POLLUTION) 11. The soil becomes ____________because of the use of so many pesticides and fertilizers. (CONTAMINATE) 12. ____________waste spills can contaminate groundwater. (INDUSTRY) 13. In many developing countries, water pollution is usually a leading cause of ___________.(DIE) 14. _______elements have been found in both ground and underground water sources.(POLLUTE) 15. Fish and many other animals are killed by ____________in their habitat. (POLLUTE) 16. A number of cleaning products contain ____________chemicals. (HARM) 17. Water samples collected at these villages were seriously _____with bacteria. (CONTAMINATE) 18. People believe that the __________water has brought cancer to the local residents.(POLLUTE) 19. Light pollution makes us ____________to see the stars in the sky. (ABLE) 20. Noise is considered as ____________ pollution. (ENVIRONMENT)

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