Environmental sensors are increasingly being miniaturized, with some now being the size of a grain of rice, enabling widespread and less intrusive deployment.
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The extinction of the dinosaurs (excluding birds) was caused by an asteroid impact, but volcanic activity likely played a significant contributing role, making it a "one-two punch" event.
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The Amazon rainforest, despite its immense size, relies on nutrient cycling so efficient that most nutrients are found in the living organisms themselves, not the soil.
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