✅ Correct Answer: Both A and B
Source: This question is taken from the Everyday Science
✅ Correct Answer: Speed
✅ Correct Answer: NaCl
✅ Correct Answer: A primary and A secondary mirror
✅ Correct Answer: 70%
✅ Correct Answer: Debye
✅ Correct Answer: 2 neurons
✅ Correct Answer: Soil