Rate the following argument fragment on its writing, argument, and language skills:
Evidence: Even more challenging are the clouds of highly corrosive sulfuric acid in Venus's atmosphere. On planet's surface tempatures average over 800 degrees Fahrenheit, and the atmospheric pressure is 90 times greater than what we experience on our own planet. These conditions are far more extreme than anything humans encounter on Earth; such an environment would crush even a submarine accustomed to diving to the deepest parts of our oceans and would liquefy many metals.

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