Multiple Nuclei Model
This basically means Houston's model is not very organized, things are more spread out rather than being stuck in 1 central business area, you can see this in the city if you ever go, there will be huge buildings, tons of people, then less than .5 a mile down there is a suburban area.
The east coast is 3 hours ahead of the west coast. i hope this helps :)
The oceans surrounding Asia are the Arctic, Indian, and Pacific Oceans.
They advanced in engeneriring, art and medicine. Oh and they started using a tool called a quipu