as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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describe the phenomena of "mirage".
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a mirage is a naturally occurring atmospheric optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the sky. it is most commonly seen on hot days, when a distant object appears to shimmer above the horizon. it is caused by the refraction of light trough layers of air at different temperatures, creating an optical illusion.
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