Islam gained momentum during the 10th century in West Africa with the start of the Almoravid dynasty movement on the Senegal River and as rulers and kings embraced Islam. Islam then spread slowly in much of the continent through trade and preaching.
Answer:
migration
explained: it is what it is
The Arab Springs was basically a series of uprisings across the Middle East which had started because people were not happy with life socially, economically, and politically. People in the Middle East were hit with high rates of unemployment, were skeptic of the effectiveness/legitimacy of their dictating rulers, economic hardship, etc. There are many factors that contributed to its failure but one factor that stood out to me the most was the fact that this “revolution” lacked a leader. Winning a revolt without a leader is next to impossible. A leader poses as an inspirational figure that can motivate those fighting toward greater accomplishments. What can you do without that?
Cyanobacteria use water, carbon dioxide, and sunlight to create their food, and expel oxygen as a by-product. The real significance of stromatolites is that they are the earliest fossil evidence of life on Earth. ... They were the first known organisms to photosynthesis and produce free oxygen.
C. WINFIELD SCOTT
hope this helped :)
