Which of the following is a network factor for migration?

increased communication
all of the above
low cost transportation
freer flow of information

What was the first civilization name of the indians?

Mark each statement if it describes a characteristic that pulled the greek city-states together? national anthem poetry of homer food growth and preparation

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?