6. Using the passage as a guide, it can be inferred that which of the following statements is not
true?
A. Air goes up and out the top of a chimney when you light a fire
B. Cool air collects about the ceiling when you open a refrigerator:
C. Cold air coming from an air conditioning vent settles about the floor
D. Smoke from a candle rises after you blow out the flame.
lih​