Answer:
All of the above. DESTEP = Demographic, Economic, Political, Ecological, Socio-Cultural, and Technological forces
It depends on when they either step down or more likely, die.
The reason why many Tuareg settle on farms, move to cities, or build camps is: <span>Because of Droughts in Sahara.
In the end of 19th century, the area ear sahara region had to experience a massive drought known as the sahel drought which destroyed many major components of the region. In order to survive, the tuareg </span><span>on farms, move to cities, or build camps near the region</span>
If you're asking for the definition, then goods that are sold abroad are exports.
