Which of the Following Are Considered Outdoor Nonallergenic Triggers

question 9

Multiple Choice

Which of the following are Considered outdoor nonallergenic triggers
I.Air pollutants
II.Nitrogen dioxide
III.Wood and gas stoves
IV.TobacCo smoke
V.Mold
VI.Pets

• A)II, III, IV, and V
• B)I, III, IV, and V
• C)I, II, III, and IV
• D)I, II, IV, and V

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Definitions:

Independent And Dependent Variables

Variables in an experimental setup where the independent variable is manipulated to observe its effect on the dependent variable.

Control Variable

A variable that is kept constant or monitored to minimize its effect on the outcome of the experiment.

Observational Research

A research method where the researcher observes subjects in their natural environment without intervention.

Phenomenon Manipulate

Direct alteration or control exerted over phenomena to investigate causal relationships.