Assertion: hydrogen's use | /r/CapableOf | pose unique challenges
Facets:
value: due to its ease
type: CAUSE
Source sentences:
text: The storage and use of hydrogen poses unique challenges due to its ease of leaking as a gaseous fuel, low-energy ignition, wide range of combustible fuel-air mixtures, buoyancy, and its ability to embrittle metals that must be accounted for to ensure safe operation.