Assertion: kelp's level | /r/HasProperty | low
Facets:
value: very
type: DEGREE
Source sentences:
text: Levels of other toxic heavy metals, such as arsenic, lead, aluminum, and mercury in Korean seaweed were determined to be very low and not a health threat .
text: During the night, when the light level is low, photosynthesis stops and the seaweeds begin to take in oxygen, burn glucose, and give off carbon dioxide.