Based on the information given above (Tair is the air temperature,
Td is the dew point temperature), would CITY A or CITY
B have the highest relative humidity? Would CITY
A or CITY B have the highest mixing ratio?
Would CITY A or CITY B have the highest
saturation mixing ratio? (hint: you can use three pieces of
information: the air temperature, the dew point temperature, and
the difference between Tair and Td to answer this question)