As the air near the ground is heated by the sun, it expands and rises.
(the air near the ground; is heated; by the sun) (it; expands; T:As the air near the ground is heated by the sun) (it; rises; T:As the air near the ground is heated by the sun)
the air near the ground it it
is heated expands rises
by the sun
T:As the air near the ground is heated by the sun
T:As the air near the ground is heated by the sun