Assertion: carbon dioxide | /r/HasProperty | removed by photosynthesis
Facets:
value: from the atmosphere
type: LOCATION
value: to form limestones
type: PURPOSE
Source sentences:
text: Atmospheric carbon dioxide plays an integral role in the Earth's carbon cycle whereby carbon dioxide is removed from the atmosphere by some natural processes such as photosynthesis and deposition of carbonates, to form limestones for example, and added back to the atmosphere by other natural processes such as respiration and the acid dissolution of carbonate deposits.