When speaking, we can pause or change the tone of our voices to indicate emphasis. When writing, we must use punctuation to indicate these places of emphasis. This resource should help to clarify when and how to use various marks of punctuation.
Vagaries of weather and regular flooding: Farmers learnt to control the floods and grew some of the most valuable crops like flax, barley, wheat, fruits and vegetables that helped the economy progress. But the climate in Mesopotamia was hazardous with temperatures during the summer months ranging from 110 to 130F. Nearly eight months in a year was characterized by very dry conditions with the edges of the rivers Tigris and Euphrates turning muddy brown.
Mesopotamia was not the ideal location to build a city. It was very hot in the summer, with little rain, dry land and few resources. There were no minerals, stone or metals, and few trees. The summers and winters were too dry.