Question

Use the drop-down menus to complete the sentences.
(2 points)

The
is especially important to China's early history. Winds from the Gobi Desert blow
onto the river valley. When the river floods, it then deposits the rich material onto the surrounding plain. Because of this,
was made possible in China.

Answer 1

for the second empty answer is it
a. sand
b. dikes
c. oracle bones
d. loess

Answer 2

are u suyre