General Knowledge 21.10.2026

1. The richest source of Vitamin D from food is:
Answer: Cod liver oil

2. What was the first transgenic crop?
Answer: Tobacco

3. Which radioactive element was used in heart pacemakers?
Answer: Plutonium

4. Who coined the word ‘Biodiversity’?
Answer: W. G. Rosen

5. Which pair comprises the smallest and the largest endocrine glands in humans, respectively?
Answer: Pineal body – Thyroid

6. Name the sodium compound that is used for softening hard water.
Answer: Washing soda

7. Potato chips are stored in which gas to prevent oxidation?
Answer: Nitrogen

8. Who was the last Nizam (ruler) of Hyderabad?
Answer: Mir Osman Ali Khan

9. Who proposed the ‘Theory of Natural Selection’?
Answer: Charles Robert Darwin

10. Which place was called the “Nursery of the Bengal Army”?
Answer: Awadh

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