<span> B. He was the president of South Africa in 1990 and pushed reforms that ended apartheid.</span>
Answer:
An oasis can be formed by an underground aquifer or river that creates enough pressure for water to seep to the surface, forming the oasis. These aquifers and natural springs allow for life to exist in harsh climates like the desert and are often well known to local herders, farmers, and travelers in the region.
Conscription forces someone to go to war; no one likes to be forced to do something against their will
People forced to go to war may be putting family and friends at risk who they were taking care of.
Less people will be working if everyone is at war
Athens, Sparta being war based has little slave.