No better symbol exists of how man has altered the river, in ways both bad and good, than Grand Coulee Dam. Built during the Depression, the dam's benefits were manifold. It put 7,000 people to work, created a reservoir for the biggest irrigation project the country had ever seen, provided flood control, and produced electricity that would power America's war effort. At the time, it was the largest concrete structure ever built. Today Grand Coulee generates more electricity than any other dam in the U. S., enough for a million households a year. . . . The dams have wreaked havoc on salmon, the creature that symbolizes the Northwest, whose epic migration from streams to ocean and back again to natal streams is one of the wonders of the natural world. Today perhaps 200,000 to 300,000 wild salmon remain on the Columbia, less than 3 percent.

–Fen Montaigne, "A River Dammed," 2001

What is the main idea of this passage?

A. The dam had little impact on the region.

B. The dam helped the entire region grow.

C. The dam had both positive and negative effects.

D. The dam did not have any effect until many years later.

I NEED THIS ASAP PLEASE

Aprovision of the general agreement on tariffs and trade treaty (gatt)increased taxes on services between the us, mexico, and canada.reduced international tariffs on industrial goods by forty percent.increased us tariffs on agricultural products by forty percent.ended taxes on goods traded by the us, mexico, and canada.

What was included in most state constitutions that guaranteed protection of individual liberties based upon common law?

Which of the following methods could be considered a "best practice" in terms of informing respondents how their answers to an on-line survey about personal information will be protected? respondents are informed that investigators will try to keep their participation confidential; however, confidentiality cannot be assured.respondents are informed that a research assistant will transfer all the research data to a password-protected computer that is not connected to the internet, via a usb flashdrive. the computer is located in a research team member's office.the investigator uses the informed consent process to explain her institution's method for guaranteeing absolute confidentiality of research data.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed.the investigator uses the informed consent process to explain how respondent data will be transmitted from the website to his encrypted database without ever recording respondents' ip addresses, but explains that on the internet confidentiality cannot be absolutely guaranteed