On Triton, all the rocks are frozen solid, and the volcanoes erupt an unknown mixture of substances - probably including liquid methane (natural gas), which only freezes at the very coldest temperatures possible.
(all the rocks; are frozen; solid; L:On Triton) (the volcanoes; probably including; liquid methane (natural gas), which only freezes at the very coldest temperatures possible) (liquid methane; only freezes; at the very coldest temperatures possible)
all the rocks the volcanoes liquid methane
are frozen probably including only freezes
solid L:On Triton
liquid methane (natural gas), which only freezes at the very coldest temperatures possible
at the very coldest temperatures possible