Deforestation, that would be clearing the land leading to desertification
Explanation:
The Phanerozoic eon is separated into three eras: the Paleozoic, Mesozoic, and Cenozoic eras
Answer:
because Wakanda was hiding all the Vibranium....honestly cos it's a third world country, and when they had the chance to like....build a better society, they got enslaved
