Over time, have caused several alterations of the huang river's course.

a.
earthquakes
c.
loess
b.
diakes
d.
climate changes

What is one example of trench warfare ?

Religious men who lived apart from society

What was the national government’s biggest concern if facing a war, under the articles of confederation? the national government had no national military. the country had grown too large to defend with a small army. the states would not back the federal government. there was no way the states would pay for fighting a war.