Site is the accurate location of a city, you can find it on a map. The situation of a city is related to its surrounding charecteristics, both human-made and natural. The site of a city has features that are inherent to its location. The situation of the city includes characteristics that are outside to the settlement.
The Bronze Era was a time period in history where basic tools were developed and this epoch has been chosen as a turning point during pre-history where advancement and progression were key for the modern human to come.
According to the circadian rhythm, i.e the biological clock which is maintained by exposure to the light. As in winter, especially in northern latitudes, the daylight hours are limited and short thus the light can be scarce as compared to the summers.