What creates the northern barrier of china's geographical isolation

The ___(Gobi Desert)___ creates the northern barrier of China's geographical isolation.

The Gobi Desert borders to the north of China and the south of Mongolia.

if you have to make a general question and respond to your thoughts, then this isn't really a question someone can you on. read the passage, form your question, and answer using your thoughts. no one else can understand how you interpreted this text if you don't tell us.