How did the geography of China affect its development of being a civilization?

The large land was isolated from much of the rest of the world by dry deserts to the north and west, the Pacific Ocean to the east, and impassable mountains to the south. This enabled the Chinese to develop independently from other world civilizations.

Explanation:

lend lease program was passed by congress on march 11, 1941. the president could ship weapons, food, or stuff to any country whose struggle against the axis assisted u.s. defense