Water Cycle: precipitation, transpiration, aquifer, surface runoff, Carbon Cycle: combustion, auto and factory emissions, fossil fuels, photosynthesis, Nitrogen Cycle: lightning, deamination, ammonia , bacteria, Phosphorus Cycle: geological uplift, weathered rock, does not have an atmospheric component,

Nutrient Cycles

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排行榜

視覺風格

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切換範本

恢復自動保存: ?