Answer:
the second one is the answer
Explanation:
The two discoveries that brought a revolution in early man's life are:
1) Agriculture - It helped the early man to produce its own food. this innovation made possible new flux of innovations and ideas the husbandry and domestication of all modern cattle and pets (except dogs), the formation of soldiers and wars, the money, the origin of religion, writing and all the very basis of modern life. Developing all these new outcomes would be impossible without the cooperation and organized structure of agricultural societies.
2) Language and paintings - Language helps them to communicate with each other and painting which they did at that time helped Historians today to know about their life, language, etc.
Answer:
Ghana achieved much of its wealth by trading with the Arabs. Islamic merchants traveled over 2 months across the desert and were taxed by Ghana for anything they brought in or took out. Ghana declined and was weakened by attacks from invaders and was eventually cut off from trade and absorbed into the Kingdom of Mali.
Explanation:
