D.Vietnam. because of those places named the only place it runs through is Vietnam
Hydro=water therefore hydroelectric means to use water for power. WA & Oregon are closer to water than the great planes. the answer is yes.
Answer:
In a pineapple under the sea, in a place called bikini bottom, near a small uncharted isle, where gilligan and his crew crashed on a 3 hour tour, surrounded by many fish, a starfish, and a squid.
Explanation:
Duh
I think the answer is "physical"
hope this helps ! :D