Which of These Is/are Not a Source of Chemical Contamination

question 68

Multiple Choice

Which of these is/are not a source of chemical contamination of ground water?

• A) Human waste
• B) Pesticides
• C) Industrial wastes
• D) Atmospheric emissions
• E) Household solvents

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Definitions:

Random Sample

A method of selecting a sample from a population in which every individual has an equal chance of being chosen.

Confounds

Variables that researchers fail to control or eliminate, which can cause a misunderstanding of the causal relationship in a study.

Operational Definitions

Clearly defined criteria or measures used to describe and quantify a concept or variable in research.

Conceptual Replicability

refers to the extent to which research findings can be confirmed or supported through studies with similar conceptual frameworks but different methods.