Science prompt
Name a gas in Earth's atmosphere — Best Krillion Answers
Facing “Name a gas in Earth's atmosphere” in a dive? Here is how to think rare: the best picks, the safe backups, and the crowd defaults to avoid. Every answer below is real and valid — rarity decides the tier.
Best rare pick: Neon — specific, valid, and uncommon enough for Deep Cut or better.
Avoid (Plankton): Oxygen, Nitrogen — correct, but the crowd's first thought.
One in a Krillion — 100 pts
The rarest valid answers — maximum depth.
Neon · Krypton
Deep Cut — 85 pts
Extremely rare picks most players miss.
Helium · Xenon
Rare — 60 pts
Genuinely uncommon — strong scoring.
Methane · Nitrous oxide
Schooler — 30 pts
Known but not top-of-mind.
Ozone · Hydrogen
Too Clever — 15 pts
A bit too obvious.
Carbon dioxide · Argon
Plankton — 10 pts
The crowd's default — avoid these.
Oxygen · Nitrogen
How to play this prompt
Strategy notes specific to “Name a gas in Earth's atmosphere” — not generic advice.
Science prompts reward precision — the vague version of your answer is common, the exact term is rare.
Lead with Neon. It's the kind of answer that makes other players say 'I knew that!' after the reveal — which is exactly why they didn't type it. Helium works the same way if you want a second bullet in the chamber.
The trap is Oxygen — correct, but it's the reflex answer for a reason: it's the first thing the category suggests. Nitrogen is the same story. Typing either one puts you shoulder-to-shoulder with most of the player base at 10 points.
The middle of the bank tells the real story: Methane lands in Rare while Oxygen sits in Plankton — same prompt, wildly different rarity. That gap is exactly where the points hide.
Think in clusters, not singles. Xenon, Nitrous oxide, and Helium sit in the same rarity band — knowing one should unlock the others when the clock is running.
Rated 4/5 difficulty — only 12 banked answers, so matching the bank is genuinely hard. Precision matters more than speed here.
Related prompts
More Science prompts to train on — same rarity thinking, new answers.