English-Chinese/Biosphere
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The biosphere includes everything living on Earth. Currently the biosphere has a biomass (or amount of living things) at around 1900 gigatonnes of carbon. It is not certain exactly how thick the biosphere is, though scientists predict that it is around 12,500 meters. The biosphere extends to the upper areas of the atmosphere, including birds and insects.
生物圈包括生活在地球上的一切。目前，生物圈的生物量约为1900亿吨碳。虽然科学家预测生物圈的厚度大约为12,500米，但尚不确定它究竟有多厚。生物圈延伸到大气的上部区域，包括鸟类和昆虫。