Help please :))
And ty

1. 3rd

2. Sanora

3. Weathering

4. Mining, because Africa has lots of rich mineral such as diamonds and oil that they sell to other countries.

5. don't know this one sorry

6. Nile

7. because of the weather it made it difficult for people to acclimate and evolve more technology wise.

8. Fresh water

9. When France took over some parts of Africa and enslaved their country them

answer; i believe that the correct answer is (the explosion of a nearby star(supernova);