Use of Synthetic Fertilizers Often Leads to the Contamination of Groundwater

question 33

Multiple Choice

Use of synthetic fertilizers often leads to the contamination of groundwater with nitrates. Nitrate pollution is also a suspected cause of anoxic "dead zones" in the ocean. Which of the following might help reduce nitrate pollution?

• A) growing improved crop plants that have nitrogen-fixing enzymes
• B) adding nitrifying bacteria to the soil
• C) adding denitrifying bacteria to the soil
• D) using ammonia instead of nitrate as a fertilizer

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Definitions:

Contingency Theories

A group of leadership theories suggesting that the best leadership strategy is contingent upon various internal and external situations.

Leadership Efficiency

The ability of a leader to achieve desired outcomes with minimal waste of time, effort, or resources.

Trait Approach

A perspective in leadership that suggests certain physical, social, and personal characteristics are inherent to leaders.

Significant Correlations

Statistical relationships between two variables indicating a strong association that is not likely due to chance alone.