Answer:
They maintained good farmland by managing the rivers.
Explanation:
because I just took the test hope this helps
Studying geography reveals human history.
Maybe post the picture to your problem if you need help
Acid precipitation is caused by a mix of <span>sulfur dioxide, carbon dioxide, and nitrogen oxide. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that you were looking for and it has actually come to your help.</span>
