3. Most of our rivers are seriously …………………..(pollute) 4. ………………is the protection and wise management of the environment (conserve) 5. People are destroying the air by adding……………….to the environment (pollute) 6. Floods, volcanoes and earthquakes are kinds of ……………..disasters (nature) 7. It is English phrasal verbs that cause me a lot of ……………….(difficult) 8. She was ……………........from the tennis match in the first round (elimination) 9. He will certainly carry out his ………………..to harm you (threaten) 10. The scientists have found the better ways to protect the ………….of the environment (destroy)