Why do taureg themselves a name that means "free men"

The Tuareg call themselves by a name that means "free men" because they have no national or cultural ties.

Explanation:

In today's date, the Tuaregs inhabit the Sahara desert and are found in countries of Libya, Mali, Nigeria, Faso, Algeria, and Burkina. Most Tuareg communities are Muslim by religion. There is no record available about their origin. They are most concentrated in the northeastern part of an African country named Mali. The total population of Tuaregs in the world is about 2.5 million.

the answer is a the king was elected to his position

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.