521. Defeciency of following vitamin decreases hemoglobin production ?
✅ D. Pyridoxine
✅ D. Pyridoxine
✅ A. 3
✅ B. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
✅ A. A coating which reduces the visibility of an aircraft on radar
✅ D. Nitrous oxide
✅ A. Traditional Chinese medicine
✅ A. Vectors
✅ C. 12%
✅ C. Sponges
✅ A. Lens
✅ C. Frog and snakes
✅ A. is poisonous to tissues
✅ C. Freon
✅ B. Stapes
✅ D. Anemometer
✅ A. Black ice
✅ B. Insulin
✅ B. Lithium
✅ C. Gases
✅ D. peat