Scientists have long believed that oxygen collected in Earth's early atmosphere as a by-product of plant life from a process called photosynthesis, in which plants take carbon dioxide and water to produce organic matter and oxygen.
(Scientists; have believed; T:long) (oxygen; collected; L:in Earth's early atmosphere as a by-product of plant life from a process) (plants; take; carbon dioxide and water; to produce organic matter and oxygen; L:a process called photosynthesis) Context(plants take,List([157, 168))):(plants; take carbon dioxide and water to produce; organic matter and oxygen)
plants take,List([157, 168))
Scientists oxygen plants plants
have believed collected take take carbon dioxide and water to produce
T:long
L:in Earth's early atmosphere as a by-product of plant life from a process
carbon dioxide and water to produce organic matter and oxygen L:a process called photosynthesis
organic matter and oxygen