| 21. | 26 November is celebrated as – |
| a. | |
| b. | |
| c. | |
| d. |
| 22. | 1 December is celebrated as – |
| a. | |
| b. | |
| c. | |
| d. |
| 23. | 5 December is celebrated as – |
| a. | |
| b. | |
| c. | |
| d. |
| 24. | 7 December is celebrated as – |
| a. | |
| b. | |
| c. | |
| d. |
| 25. | 9 December is celebrated as – |
| a. | |
| b. | |
| c. | |
| d. |
| 26. | The Nuclear Non-Proliferation Treaty came into force in – |
| a. | 1967 |
| b. | 1970 |
| c. | 1971 |
| d. | 1974 |
| 27. | In which year was the first world environment day observed? |
| a. | 1973 |
| b. | 1972 |
| c. | 1980 |
| d. | 1974 |
| 28. | Hong Kong will be transferred to China in – |
| a. | 1990 |
| b. | 1996 |
| c. | 1997 |
| d. | 2000 |
| 29. | Which of the following year is celebrated as International Year of Biodiversity? |
| a. | 1997 |
| b. | 2010 |
| c. | 2005 |
| d. | 2003 |
| 30. | Which of the following year is celebrated as International Year of the Potato? |
| a. | 2008 |
| b. | 2001 |
| c. | 2005 |
| d. | 2003 |