Answer:
Yes.
Explanation:
Yes, the benefits of projects to dam rivers in the Columbia Basin have outweighed their cost because these projects provides large benefits to the Columbia. They produces energy from these projects of dams as well as stored the water which can be used for agriculture purposes. So for producing energy from these dams, more money should be invested which increase and outweighed the cost. Due to these projects, more barren land can be converted into fertile agricultural land.
