Final answer:
Ancient China was geographically isolated by natural barriers such as mountains, deserts, and seas, which protected it from external threats.
Step-by-step explanation:
Ancient China was isolated in the north, south, east, and west by natural barriers such as mountains, deserts, and seas. These barriers included the Himalayas in the southwest, the Gobi Desert in the north, the Pacific Ocean in the east, and the Tibetan Plateau in the west. These geographical features created a challenging environment for invaders and helped to protect China from external threats.
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