The majority of carbon dioxide that enters the atmosphere each year is the bulk of the planet's "carbon cycle," and comes from oceanic and terrestrial animals as a by-product of their metabolisms.
(carbon dioxide; enters; the atmosphere; T:each year) (The majority of carbon dioxide; is; the bulk of the planet's "carbon cycle) (The majority of carbon dioxide; comes; from oceanic and terrestrial animals as a by-product of their metabolisms)
carbon dioxide The majority of carbon dioxide The majority of carbon dioxide
enters is comes
the atmosphere T:each year
the bulk of the planet's "carbon cycle
from oceanic and terrestrial animals as a by-product of their metabolisms