All of the Following Problems Are Direct Results of Human

question 21

Multiple Choice

All of the following problems are direct results of human impact on the nitrogen cycle except:

• A) photochemical smog.
• B) global warming.
• C) acid rain.
• D) El Niño-Southern Oscillation events.
• E) depletion of the ozone layer.

---

Definitions:

APC

Average Propensity to Consume (APC) is a measure of the fraction of income spent on consumption rather than saving in an economy.

Disposable Income

Discretionary income for households to utilize in their saving and spending after the enforcement of income taxes.

Consumption

Refers to the use of goods and services by households or individuals for personal needs or for leisure, as opposed to investment or savings.

Billion

A numerical value represented by 1,000 million or 10^9.