Why was the development of government necessary in early cities such as Ur?

The map above shows where people live in the united states. areas that are darker blue are areas where people live close together. areas that are lighter colors are places where people live farther apart. as a geographer, if you were to study where people live and why they choose to live in these places, which of the six essential elements of geography would you be using?

The blue segment below is a diameter of oo. what is the length of the radius of the circle?

Choose the factors that influence the climate of the u. s. northeast. distance from the equator proximity to large urban areas elevation secluded area distance from a large body of water