You Have Been Using Massive Amounts of Weed Killer and Insecticide

question 64

Multiple Choice

You have been using massive amounts of weed killer and insecticide to kill weeds in your yard, as well as the grubs and aphids that are munching on your roses and your grass. What effect might this have from a microbiological standpoint?

• A) Loss of microbial diversity in the soil
• B) Reduction in microbial numbers in the soil
• C) Damage to the nitrogen ?xing bacteria
• D) Damage to the mycorrhizae
• E) All of the choices are correct.

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Definitions:

Permissible Variation

The acceptable range of deviation that a quality characteristic can exhibit without affecting the performance of a product or system.

Nominal Specification

Nominal Specification refers to the precisely defined or stated values of variables or parameters that are intended in design or development, serving as standards or norms.

Variables Data

Data that can be measured and quantified, coming in a range of values that can often be fractioned or divided further.

R-chart

A control chart used to monitor the range of variability within a process as a measure of dispersion.