Why Does a Stream Bottom Erode More Deeply When Its

question 4

Multiple Choice

Why does a stream bottom erode more deeply when its water level rises in a flood?

• A) Since its water velocity remains the same, the increased volume of water can carry more sediment.
• B) Its water level rises, so water velocity increases and it can carry more sediment.
• C) It doesn't-its stream bottom builds up to match the rise in water level.
• D) Its gradient becomes steeper, so it can erode deeper.
• E) To accommodate the additional water, its velocity slows, and it digs in deeper.

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Definitions:

Equilibrium Price

The price at which the quantity of a good demanded by consumers equals the quantity supplied by producers, resulting in a stable market condition.

Long-run Supply Curve

A graphical representation of the quantities of goods and services that producers are willing to offer for sale at different prices in the long run, when all inputs can be varied.

Marginal Cost Curve

A graphical representation showing how the cost to produce one additional unit of a good changes as production volume changes.

Break-even Point

The point at which total costs and total revenues are equal, meaning a business or project is neither making a profit nor a loss.