地球の誕生と大気の起源
6 months ago
17
≈紀元前4,542,998,000年
10個の原始惑星が衝突、合体し地球が誕生する。地球の内部から放出されたガスにより主に以下の原子大気が生まれる。
①メタン
②アンモニア
③二酸化炭素
一元化 公式HP
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