搜尋結果
carbon cycle
- IPA[ˈkɑːbən ˌsʌɪkl]
英式
- the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.；the cycle of thermonuclear reactions believed to occur in stars, in which carbon nuclei are repeatedly formed and broken down in the conversion of hydrogen into helium.
noun: carbon cycle, plural noun: carbon cycles
