C: They all contain a transparent part with at least one curved surface that refracts light.
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Mental health is an important component of an individual’s overall wellness because :
It determines our emotional and social wellbeing and this take measures about 50 percent of the overall wellness.
<h3>Meaning of Mental Health</h3>
Mental health can be defined as a state of being in the right frame of mind. Mental health is a very important aspect of the human wellness in the sense that it stretches unto emotional, sociological, and psychological wellness.
In conclusion, mental health is an important component of an individual’s overall wellness
Learn more about Mental health: brainly.com/question/983672
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*People solve most life problems for themselves rather than expecting others to care for their needs.