D. the removal or chemical alteration of the majority of a contaminant
<span>Classical conditioning could account for how a child learns to "fear the dark".
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Classical conditioning alludes to a learning system in which a biologically potent stimulus(e.g. sustenance) is combined with a formerly unbiased boost (we can take food as an example). It additionally alludes to the taking in process that outcomes from this matching, through which the neutral stimulus comes to evoke a reaction that is normally like the one inspired by the strong stimulus.
The phenomenon where many elderly people lose knowledge and forget memories that are not commonly recalled is a transience phenomenon.
<h3>What is a transience phenomenon in psychology?</h3>
Transience is the gradual deterioration of memory retrieval and access.
Transience, one of the "7 sins of memory," develops naturally with aging but can also develop severely as a result of brain damage. Both short-term and long-term memory are affected.
The flaws in memory are both fascinating and significant. They can be broken down into seven basic offenses, or "sins,"
Transience is the gradual deterioration of memory access. Aging is a natural process of transience, yet certain factors can hasten it. Transience may result from traumatic brain injury or hippocampal damage.
Transience may also be brought on by some diseases, such as Alzheimer's or dementia. Furthermore, both brief and long-term loneliness in older persons were strongly associated with diminished cognitive function.
Therefore, "transience" is the correct answer.
Check out the link below to learn about the transience phenomenon;
brainly.com/question/14235600
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