That is a picture of Hagia Sophia located in Istanbul, Turkey. The Hagia Sophia served as a center for religious, political, and artistic life for the Byzantine Empire (Eastern Roman Empire). It started as a place of great importance for the Byzantines, but then became a extremely important site of worship when Sultan Mehmed II conquered Constantinople. (Constantinople is modern day Istanbul)
Answer:
a. Its consideration of environment impact (such as accommodation for fish) became a model for future dam projects on western rivers
Explanation:
The Columbia River project was a project of great significance for the whole region, especially for the state of Washington. This project had many positive impacts such as production of electricity, irrigation for more than half of the farmlands, development of the area, opening up new jobs. One very big problem though was the impact on the species of fish in the river. As most of them are migratory species, with the building of the dam they were stopped in their movement, thus they became restricted to the upper part of the river. Also, the water and composition of the water changed, and all of these things contributed to significant reduction of the populations of the native species of fish.
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C i believe i might be wrong