In a white dwarf, gravitational collapse is prevented by electron degeneracy pressure. this is a result of the pauli exclusion principle, which basically states that two electrons cannot occupy the same orbital/energy level at the same time.
Answer:
Option: C. Columbia
Explanation:
The Columbia River provides more than one-third of all the hydroelectric power in the United States. Hydroelectric power plants located on the river with generating capacity and contributed approx 44% of the total hydroelectric power in the nation. The steep slopes of the Columbia River and its streams make it ideal for the production of hydroelectric power.
Ecuador & Columbia
Both are Bordering Peru in the North.