25. (1.3, 1.4; DOK 2) Mountains, hills, and deserts helped the Chinese to thrive because the dangers located there taught the Chinese how to be great warriors they provided varied ecosystems for a wide variety of plants and animals these features encouraged the Chinese to become expert hunter-gatherers. these features protected China from invasion

The geographical features of mountains and deserts acted as natural barriers, safeguarding ancient China from external invasions. The formidable Himalayas and the vast Gobi Desert made it challenging for potential attackers to penetrate, allowing Chinese civilization to flourish relatively undisturbed for centuries. This protective isolation gave rise to a unique cultural identity and gave the Chinese time to develop their own innovations and societal structures. Furthermore, the varied ecosystems created by these geographical features nurtured rich biodiversity, which greatly benefited agricultural practices. The diverse landscapes fostered a wide array of crops and animals, enabling the Chinese to develop sustainable farming practices. This adaptability not only ensured food security but also supported the growth of trade and culture within their communities, paving the way for advancements in technology and society.