1. We must learn about keeping evironment .................unpolluted...................... ( polluted )
2. Environment ..................protection.............. is everybody's responsibility . ( protect ) 
3. Scientists are looking for an ......effective......... way to reduce energy consumptions . ( effect )
4. ..........deforestation.................. is now a serious problem in many countries . ( forest ) 
5. Can you tell me the reasons for .......celebrating.................. the Mother,s Day ? ( celebrate ) 
6 . Passover of the Jewish people is a festival which celebrates ........freedom............ from slavery . ( free )
7. I'm very ................proud..... of my father  and love him so much . ( pride ) 
8. The earthquake caused terrible ...........destruction........................ ( destroy ) 
9. Thousands of people were .........disastrously................... killed in that morning . ( disaster ) 
10. I'm afraid of the picture which shows a violent ..........eruption............. ( erupt )

1. unpolluted

2.protection

3. effective

4.deforestation

5.celebrating

6.freedom

7.proud

8.destruction

9.disastrously

10. eruption