Assertion: magnetic field | /r/CreatedBy | an ocean of molten
Facets:
value: largely
type: DEGREE
Source sentences:
text: The magnetic field is thought to be produced largely by an ocean of molten, swirling liquid iron that makes up our planet’s outer core, 3000 km under our feet.
text: Our magnetic field is widely thought to be produced by an ocean of molten, swirling iron that makes up our planet's outer core, 3,000 km below our feet.