✅ Correct Answer: Methane
Source: This question is taken from the Everyday Science
✅ Correct Answer: Calcium Carbonate &Megnesium Carbonate
✅ Correct Answer: Nitrogen
✅ Correct Answer: acellular
✅ Correct Answer: Iron
✅ Correct Answer: Cobalt
✅ Correct Answer: A sea bird
✅ Correct Answer: Blue