Assertion: cockle's shell | /r/CapableOf | dissolve over 30 days
Facets:
value: in seawater
type: LOCATION
value: literally
type: OTHER
Source sentences:
text: Marine pteropods already have thin shells, and these shells literally dissolve over 30 days in seawater with a 7.8 pH. Studies on sea urchins and mollusks show similar results.