The heating also causes the air to expand, become less dense, and rise.
(the air; to become; less dense) (the air; to rise; ) (The heating; causes; the air to expand, become less dense, and rise) Context(The heating causes,List([0, 23))):(the air; to expand; )
The heating causes,List([0, 23))
the air the air The heating the air
to become to rise causes to expand
less dense
the air to expand, become less dense, and rise