Final answer:
The Great Green Wall aims to prevent desertification in the Sahel region of Africa by planting trees and vegetation.
Step-by-step explanation:
The goal of the Great Green Wall is to prevent desertification in the Sahel region of Africa, not China. The Sahel region is a semi-arid strip of land that extends across Africa, just south of the Sahara Desert. Desertification is the gradual degradation of land in arid and semi-arid areas, leading to the expansion of deserts. The Great Green Wall aims to combat desertification by planting trees and vegetation in a belt across multiple African countries, providing a barrier against the desert's expansion and promoting reforestation.
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