Question

What geographical feature is on China’s southwestern border

Answer 1

Qinghai-Tibet Plateau Situated in southwest China, it is the largest plateau in China, covering 2.5 million square km, or nearly a quarter of the national total land area.

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Answer 2

In the southwest, China is bounded by the Himalaya Mountains. The major geographical region in this area is the Tibet-Qinghai Plateau (Tibetan Plateau). It is the world's largest plateau.