For the following questions refer to the temperature and dew point data in the following cities:
-Suppose saturated polar air has an air temperature and dew point of -10ºC, and unsaturated desert air has an air temperature of 35ºC and a dew point of 10ºC. Which of the following describes the water vapour and relative humidity of desert air compared to polar air?
A)Desert air has less water vapour and lower relative humidity than polar air.
B)Desert air has less water vapour and higher relative humidity than polar air.
C)Desert air has more water vapour and lower relative humidity than polar air.
D)Desert air has more water vapour and higher relative humidity than polar air.

Question

For the following questions refer to the temperature and dew point data in the following cities: 
-Suppose saturated polar air has an air temperature and dew point of -10ºC, and unsaturated desert air has an air temperature of 35ºC and a dew point of 10ºC. Which of the following describes the water vapour and relative humidity of desert air compared to polar air?
A)Desert air has less water vapour and lower relative humidity than polar air. 
B)Desert air has less water vapour and higher relative humidity than polar air. 
C)Desert air has more water vapour and lower relative humidity than polar air. 
D)Desert air has more water vapour and higher relative humidity than polar air.

Quizplus · Accepted Answer

Desert air at 35ºC with a dew point of 10ºC contains more water vapor than polar air at -10ºC with the same temperature as its dew point, due to the higher capacity of warm air to hold moisture. However, the relative humidity of desert air is lower because the air is far from being saturated, as indicated by the large difference between its temperature and dew point.

For the Following Questions Refer to the Temperature and Dew