Why Are Floods So Common Along the Red River of the North

question 37

Multiple Choice

Why are floods so common along the Red River of the North (in North Dakota,South Dakota,and Minnesota) ?

• A)The Red River valley is geologically young (about 9000 years old)and has not carved a deep valley.
• B)The gradient or slope of the riverbed is very low.
• C)River flow increases as winter snow melts and meltwater runs northward into still frozen parts of the river.
• D)All of these choices are correct.

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Definitions:

Variable Costs

Costs that vary directly with the level of production or sales volume, such as raw materials and direct labor costs.

Contribution Margin

The amount by which sales revenue exceeds variable costs of production, indicating how much contributes to fixed costs and profits.

Marginal Cost

The cost incurred by producing one additional unit of a product or service, important for pricing and production decision-making.

Contribution Margin

The amount by which a product's sales revenue exceeds its variable costs, used to cover fixed costs and towards profit.