transfer of.from.to.
修饰的是heat and water vapor
因为只要在tranfer of 与 from之间的都被修饰（）
The transfer of heat and water vapor from the ocean to the air above it depends on a disequilibrium at the interface of the water and the air.
若这句话里的from是仅仅修饰water,则 （The transfer of heat ）主语一
and water vapor from the ocean to the air above 主语二
应当后接 depend