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MCQIntermediateExoplanets & Detection
IAAC — 2022 Final Round
Question 18
Scientists detect no CH₃OH and no NH₃ in the atmosphere of a sub-Neptune planet. What type of surface does this planet probably have?
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Source
Source: International Astronomy and Astrophysics Competition (IAAC), Final Round 2022. Question wording and answer-choice text are transcribed from the official training PDF; the explanation and metadata are original.