✅ Correct Answer: Basic
Source: This question is taken from the Everyday Science
✅ Correct Answer: vitamin D
✅ Correct Answer: Solid in gas
✅ Correct Answer: Apehelion
✅ Correct Answer: Remains constant
✅ Correct Answer: Burning Of Fuels
✅ Correct Answer: 6.5-8.5
✅ Correct Answer: Ink in water
✅ Correct Answer: Water