Which language is one of the most widely spoken languages in east africa?

One of the most widely spoken languages in East Africa was Arabic or Somali. 

Developed countries will see a decrease in natural resources, because their population will decrease.

The zhou dynasty (1046-256 bce) was the longest-lasting of china's dynasties. it followed the shang dynasty (c. 1600-1046 bce) and it finished when the army of the state of qin captured the city of chengzhou in 256 bce.