Farmers in the bronze age were to trade surplus crops at disatnt markets because of which technological advancement?

Why were the numbering trials held from 1945 to 1946 ?

What do you think was a drawback to this method of calculating distance

This pie chart shows statistics related to the world's population. a pie chart like this one is most for making predictions about the future. showing how parts make up a whole. presenting amounts over a period of time. comparing information from different sources.