📅 NSB Round Robin 2012🎓 HS🔄 Round 8#️⃣ Question 24🌟 BONUS✍️ Short Answer
By number, rank the following four choices in order of increasing potential to impact climate change in the next 20 years: 1) CFC-12, 2) methane, 3) carbon dioxide, 4) nitrous oxide.
✔️Answer:3, 2, 4, 1
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