Lisa lives in a city that has an average monthly rainfall of 71 millimeters. it has warm summers, and is hottest during july, with an average high temperature of 81°f. the winters are very cold. lisa’s friend julia lives in a city with an average monthly precipitation of 270 millimeters. it is warm all year. julia’s city is in a ? climate, while lisa’s city is in a ? climate.

Lisa lives in a city, which is a part of the dry climate types. It is most probably a place where the temperatures in the summers are high, and in winter are very low. The place probably would be far from the sea, due to which the rainfall does not reach this place, and thus having a symbolic amount of annual rainfall. Lisa's most probably would be living in a city has a continental climate.  

On the other hand, Lisa's friend Julia lives in a city that has an average monthly rainfall of 270 millimeters, it is warm throughout the year, and thus would be possessing higher humidity. On seeing the information, Julia would be living in a city has a tropical climate.  

Julia's city is an Tropical climate, while Lisa's city is in a Continental climate.

layer 3 is younger than layer 6.