Answer: Caffeine
2. By what name is chloro-fluoro carbon known?
North franis
3. The only acid that melts gold
Answer → Aqua Regia
4. The master of modern atom theory is considered
Answer → to John Dalton
5. Filariaris disease is caused by
North → worm
6. What is the movement of the pendulum?
Answer → Oscillation speed
7. What percentage of total gases present in the atmosphere is nitrogen?
Answer: 78%
8. What is the use of the doctor in the investigation of patients
Reply → Stethoscope
9. Human urine
Answer → Acidic
10. In citrus fruits
Answer → citric acid
11. The unit of work
Answer: Joule
12. What types of teeth are used to cut apples from teeth?
North → Krantak
13. What is used to remove vulnerability
Answer: Concave lens
14. The largest artery in the human body
Answer → Aorta
15. The largest natural satellite in the solar system
Reply → Ganymede
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