Settlements are places where people build their homes and lives. Early humans lived on trees and in caves and were dependent on nature for shelter. As agriculture came into existence, there was a need for a permanent shelter near the crops. Settlements are places where people build their homes. Accommodations can be permanent or temporary. The four primary means of transport are roadways, railways, waterways and airways. Communication is the process of conveying messages to others. Mass media means communicating with the masses through newspapers, radio and television.