Answer:
photosynthesis
carbon sequestration
Explanation:
Both photosynthesis and carbon sequestration are processes that remove airborne CO2 from Earth's atmosphere.
Carbon sequestration isvabmethod which describes long-term storage of carbon dioxide or other forms of carbon to either mitigate or defer global warming and avoid dangerous climate change.
Photosynthesis removes CO2 from the atmosphere (and replaces it with O2).
(By the way respiration is almost the oposite of photosynthesis. Respiration takes O2 from the atmosphere and replaces it with CO2.)
