I believe the answer could be one of these: timber, furs, and coal. Those were natural resources. I hope this helped! Have a nice day/night. :)
Answer: A) political obligation
Explanation:
Answer:
so in my understanding we select 4?
this is the answer for when i select 4
1.) it led to the development of new forms of irrigation
2.) shrinking farms were unable to support large cities
3.) it reduced the amount of farmable land.
4.) It benefited farmers by eliminating monsoon flooding.
the wrong answer is it caused people to change the types of crops they planted
Explanation: