Coliform Bacteria Populations Are Routinely Monitored in Drinking Water Supplies

question 56

Multiple Choice

Coliform bacteria populations are routinely monitored in drinking water supplies, swimming pools, and at beaches because these bacteria

• A) Are especially toxic to animals
• B) May mutate into severely pathogenic strains
• C) Indicate the presence of feces in water
• D) Usually live in pesticide-contaminated water
• E) Are more difficult to find in water

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Definitions:

Time Variance

The difference between actual time taken to perform an activity and the expected time.

Rate Variance

The difference between the actual rate paid for something and the standard or expected rate, often analyzed in budgeting and cost management.

Total Cost Variance

measures the difference between the actual cost of producing something and its standard cost, highlighting efficiency and budgeting issues.

Variable Factory Overhead

Costs in manufacturing that fluctuate with the level of production, such as utilities or materials.