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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generate a description of mars.
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mars is the fourth planet from the sun and the second-smallest planet in the solar system after mercury. it is a rocky planet with a thin atmosphere composed primarily of carbon dioxide. its surface features comprise a heavily cratered terrain, the largest volcano and deepest canyon in the solar system, and the planet's two frozen polar ice caps. its red-orange appearance is due to rust in its soil.
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