Assertion: hydrogen's density | /r/CapableOf | drop hundredfold
Facets:
value: from 0.25 solar radii
type: LOCATION
Source sentences:
text: The density drops a hundredfold (from 20 g/cm3 to 0.2 g/cm3) from 0.25 solar radii to the 0.7 radii, the top of the radiative zone.