This question makes no scene
Tectonically stable means that this part of the continent has not moved for billions of years. The rock formation is important understanding the history of Earth since its unmoved and untouched state can provide ideas about how the Earth looked like as seen on the layers of the rock formation.
Answer:
D.
Explanation:
The many people swarming to Africa, could'nt have reduced diversity...It would have increased it. Elimination of communism? Nope...The head of the country wouldnt be influenced too much by the people coming in. European influence would'nt have been reduced all too much either. The only answer id D. It brought new ideas to the continent. The people coming to Africa would have had a whole din of ideas, just waiting to improve the average African life. So, yeah, they did improve it.
0,1,1,2,3,3,4,4
this would be proper set notation
