Which of the following is an example of an indirect observation? A. counting rings on a tree stump to determine its age B. using
tools such as a thermometer or rain gauge to take measurements C. counting the number of bald eagles that land near a river D. using a live video to observe nesting owls
Indirect observation is an observational technique where the experimenter person does not record the data directly but use the past data recorded by another person in videos, books, documents and other sources.
In the given question, to observe the behavior of nesting owls, the experimenter is using the means of live video instead of directly observing to record the data.
The answer is Aspiration pneumonia. The low pressure in the cuff of the endotracheal tube is a risk for the aspiration pneumonia while the high cuff pressure can cause ischemia, pressure necrosis and tracheal bleeding.Hope this would be of big help.
