How did the lives of
desert Arabs and
town Arabs differ?

Answer : Desert Arabs were nomads, while town Arabs stayed in one place.

Answer : Desert Arabs always traveled and town arabs stayed in one area

answer; i do believe that its(gestation,suction-aspiration or vacuum aspiration;

'migration rates' are measurements of how many people entering or leaving a country. and if more people are leaving, this could cause a population to change.