The 10 Percent Ecological Efficiency Rule of Thumb Has Implications

question 4

Multiple Choice

The 10 percent ecological efficiency rule of thumb has implications for humans in what way?

• A) The 10 percent rule can instruct humans as to which systems need the most protection.
• B) Understanding the 10 percent rule might protect species from extinction.
• C) Recognizing the 10 percent efficiency rule may provide insight into future human diets on an increasingly populated planet.
• D) The 10 percent ecological efficiency rule points to the open ocean as a means to increase worldwide food production.

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Definitions:

Operating Leverage

Operating leverage refers to the degree to which a company can increase operating income by increasing sales, highlighting the impact of fixed versus variable costs.

Operating Income

The profit realized from a business's operational activities, calculated before interest and taxes.

Operating Leverage

A measure of how revenue growth translates into growth in operating income, indicating the degree to which a company can increase profit by increasing sales.

Variable Costs

Charges that shift in alignment with the volume of production or service tasks.