6. C.to become less reliant on fossil fuel for energy
7. A.People responded to the Gold Rush.
8. Both provinces have a humid continental climate in the south.
9. B.falling agricultural and metal prices
10. Montreal
Answer:
The annual flooding of the river left behind fertile soil to plant crops like wheat and barley. The rivers were so vital to the success of Mohenjo-daro and Harappa that when some parts of the system dried up, the civilization went into decline.
Explanation: