Assertion: kelp | /r/HasProperty | productive
Facets:
value: highly
type: DEGREE
value: because of their large photosynthetic surface
type: CAUSE
Source sentences:
text: Although kelps are highly productive, they’re much less massive than the terrestrial trees, and therefore, they can’t hold onto as much of that carbon they suck from the atmosphere.
text: Because of their large photosynthetic surface and the constant supply of nutrients in the surrounding turbulent water, kelp are highly productive plants.