1. Slowest revolution planet around the sun.
2. One Billion consists:
A. 10 millions
B. 100 millions
C. 1000 millions
D. 10000 millions
3. Where is blood formed in the human body?
D. Bone Marrow
4. An instrument to detect the purity of milk is
5. Which Vitamin is known as Ascorbic acid?
A. Vitamin A
B. Vitamin B
C. Vitamin K
D. Vitamin C
6. Who was gunpowder first invented?