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.
(give me brainliest or thanks if this helped you!)
It is important because history helps you understand the past to predict the future and help in creating it. Studying history gives us wide opportunities to get better understanding of our past experiences to count on the great achievements and avoid the horrific mistakes.

Because, They don't have another money, or people doesn't really care about them. The poor have struggles to have medical attention how they life style is like. It's hard for them to get enough medical attention, and, that's why sometimes people need to donation some money that the poor can get food, fresh water, medicine they need. Sometimes when people try to help Mother Nature comes in.. and, ruin everything. Soooo... yeah.
Hopefully, this helps you!!

Answer:
C
Explanati Because most black people were treated differently and discriminated against.
Answer:
electoral votes and popular votes all play a role :)))