In the River Continuum

question 20

Multiple Choice

In the river continuum

• A) autochthonous sources are most important near the headwaters.
• B) the gradient is highest where the river is largest.
• C) phytoplankton are important energy sources in the lower river.
• D) oxygen is usually higher in the lower river.
• E) none of the above

---

Definitions:

Estimated Annual Net Income

The projection or forecast of a company's net income over a one-year period, considering all expected revenues and expenses.

Straight-Line Depreciation

A method of allocating the cost of a physical asset evenly over its useful life.

Average Rate of Return

The ratio of the average annual profit to the initial investment, expressed as a percentage, used to assess the profitability of an investment.

Estimated Annual Net Income

The projection of a company's net income over the course of a future year, based on current trends and expectations.