Explanation:

 1.  The term 'Bedu'in the Arabic language refers to one who lives out in the open, in the desert. The Arabic word 'Badawiyin'is a generic name for a desert-dweller and the English word ‘Bedouin’ is the derived from this.

The Bedouins are seen as Arab culture’s purest representatives and the Bedouins continue to be hailed by other Arabs as “ideal” Arabs, especially because of their rich oral poetic tradition, their herding lifestyle and their traditional code of honour.

2.  Bindibu is an Australian tribe.

3.  The Bushmen are the indigenous peoples of southern Africa (Kalahari Desert). Largely hunter-gatherers, their territory spans several nations and they have called the region home for tens of thousands of years.

4.  The Tuareg people are a large Berber ethnic confederation. They principally inhabit the Sahara desert, in a vast area stretching from far southwestern Libya to southern Algeria, Niger, Mali and Burkina Faso