porphyry is an igneous rock containing conspicuous crystals called phenocrysts surrounded by a matrix of finer-grained mineral. <span>both alkali and plagioclase </span>feldspars<span> occur as irregularly shaped grains with only a few or no </span>crystal<span> faces hope it helps</span>
1) The student may be unaware of the TRUE, UNDERLYING reason why s/he "misbehaved".
2) The student may provide a response that is not a response that the [asker of the question] would be pleased to hear. (e.g. "because I hate [insert name of the person]. ; or, "because that lesson is boring"; or, "because I'm sick and tired of school."
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