A River Is Flowing in a Broad, Alluvial Valley and the River

question 127

Multiple Choice

A river is flowing in a broad, alluvial valley and the river is silt- laden but also moves sand and a small amount of gravel. The government decides to build a dam across the valley for power and flood control. What will happen to the river, upstream of the dam?

• A) The river will not change.
• B) The river will start to deposit sand and gravel, frequently spilling out of its channel.
• C) The river will respond to the new temporary base level and cut laterally outside its valley, widening the valley.
• D) The river will downcut.

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Definitions:

Net Present Value

A financial metric that calculates the present value of all future cash flows associated with a project, minus the initial investment cost.

Cost of Capital

The cost of funds used for financing a business, including the rate of return that investors demand for providing capital.

Cash Flows

The comprehensive total of financial resources entering and leaving a business, significantly affecting its ability to cover immediate and short-term obligations.

Marginal Costs

The monetary cost of generating one more unit of a product or service.