Answer:
Some were used for burial mounds , the presence of human remains would reveal that purpose.
Explanation:
So we know when certain things in history took place. Its hard somtimes to remember/memorize all the dates, but timelines do help.
Hope this helps :D
Answer: It can create a better level of stability in the government. It also separates the power in the government. It has more benefits than cons.
C or b i'm not all the way sure but i am sure it is one of them
Answer:
The mother ditch, or main ditch or canal, leads water to the headgates, which control the main flow. Lateral ditches run perpendicular to the main ditch and bring water to the fields for field irrigation. A drain canal brings water back to the stream.
Explanation: