5. The World Environment Day is celebrated on
6. India Celebrates February 28 every year as 'National Science Day' because on this day
A : first Indian Space craft was launched
B : Nehru laid the foundation of Science labs all over India
C : in 1928 C.V. Raman discovered what was later called the 'Raman Effect'
D : Vikram Sarabhai was born
7. Journalist Day was celebrated for the first time all over the country on
8. January 15 is celebrated as the