Earth's most recent glacial period ended about ________ years ago. The Great Oxygenation Event began about _______ years ago. About ______ years ago carbon dioxide began increasing exponentially to unprecedented levels.

Question

Earth's most recent glacial period ended about ________  years ago. The Great Oxygenation Event began about  _______  years ago. About ______ years ago carbon dioxide began increasing exponentially to unprecedented levels.
11,500
160
2.3 billion

GPT-4o mini · Answer

Earth's most recent glacial period ended about **11,500** years ago. The Great Oxygenation Event began about **2.3 billion** years ago. About **160** years ago, carbon dioxide began increasing exponentially to unprecedented levels.