Discussion
Cross ventilation can be achieved by :
Answer: A
Cross ventilation is achieved by placement of openings on opposite walls.
Cross ventilation needs an inlet and an outlet on opposite (or adjacent) walls, so that wind pressure drives fresh air in through one opening and stale air out through the other across the room.
Many windows on one wall do not create a through-flow, ceiling fans only stir air already in the room, and an exhaust hood removes cooking fumes locally; none of them produces cross ventilation.
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