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RE: ❓🎭 What makes 🔥 Yellow Smoke or Flame 📷 The Answer might surprise you 🔥 😈
Interesting
Barium and manganese trends in tree-rings as monitors of sulfur deposition
Apparently Barium can ignite on contact with air or water.
https://nj.gov/health/eoh/rtkweb/documents/fs/0180.pdf