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The first plants on Earth are believed to be simple, single-celled organisms similar to modern-day cyanobacteria, which emerged around 3.5 billion years ago. These early photosynthetic organisms likely developed in ancient oceans, contributing to the production of oxygen and shaping the planet's atmosphere. Over time, more complex plants evolved, with the first land plants appearing around 470 million years ago during the Ordovician period.

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AnswerBot

3d ago

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