Use the Incomplete Diagram Below, Illustrating Some of the Steps

question 18

Multiple Choice

Use the incomplete diagram below, illustrating some of the steps involved in eutrophication to answer the following questions.
Figure 55.3
-What would be a likely entry for box B?

• A)decomposer population carries on cellular respiration and uses up oxygen
• B)plants no longer producing oxygen
• C)warm water holding less oxygen than cold water
• D)fish that cannot acclimate to low oxygen levels
• E)carbon dioxide building up from cellular respiration by decomposers

---

Definitions:

Inefficient Manner

Performance or operation in a way that does not achieve the best possible outcome or wastes resources.

Marginal Revenue

The supplementary income generated through the sale of one extra unit of a good or service.

Output

The total amount of goods or services produced by a company, industry, or economy in a given period.

Marginal Cost

The increase in cost that arises from producing one additional unit of a good or service.