火星甲烷的特定同位素组成能揭示它的来源是生物化学活动还是来自于地质化学过程。

The Mars methane's specific isotopic makeup could reveal whether its origins are biochemical or geological.

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碳循环是一个生物地质化学循环圈，碳通过此循环在生物圈、土壤圈、地层、水圈、大气中交流。

The carbon cycle is the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.

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此外，使用地质化学方法可以从空气直接收集二氧化碳，因此，很大程度降低在分散资源中排放二氧化碳的处理成本。

In addition, the use of geochemical processes allows the direct capture of CO2 from the air, thus potentially lowering the cost of managing emissions from dispersed sources.

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