1.大地の変化🌐 - ふたば塾〜中学理科無料オンライン学習サイト〜

1-2地震・火山・地層🎮(中1理科)

地球の構造

地震と津波

海溝と海嶺(プレートテクトニクス)

露頭

しゅう曲

隆起（石川県）

東日本大震災（2011年）

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