Answer:
China is a very large country that has border with 14 countries. However, in this case only the Chinese landforms that serve as borders will be listed:
-The Himalayan mountain range in western China that serves as a border with Nepal.
-The Gobi desert, at the north of China which is the border with Mongolia.
-The Tibetan plateau in western China that borders on India, Bhutan and Nepal.
-The Manchurian plain to the northeast of China, is the largest plain of the country that borders North Korea.
Most likely the answer is culture.
Its letter B: prevailing winds and the Coriolis effect
Answer: about 2,450 miles south
By the apex of the civilization , the civilization stretched about 2,450 miles down south, on the western edge of South America. In some places, the empire barely even stretched a mile.
Hope this helps you!