The answer is d I took the test
The largest Urban Area: Is Sidney, Australia about 4 million people.
The Highest Elevation: Is Mount Kosciuzko.
The Largest Watershed: Is Murray-Darling river system 1 million square kilometers.
Population Density: Is 8 people per square mile.
Most Renewable Electricity Produced: Is New Zealand 73%; hydropower, geothermal, wind, biomass.
Answer:
The Rocky Mountains formed 80 million to 55 million years ago during the Laramide orogeny, in which a number of plates began sliding underneath the North American plate. The angle of subduction was shallow, resulting in a broad belt of mountains running down western North America.
Explanation:
I might be wrong but I think the answer is
Continental deflection