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MCQ
Statements: All metals are solids. Some solids are liquids. Some liquids are gases. Conclusion: Some metals are gases. Is this valid?
Biology
A Definitely true
B Definitely false
C Possibly true
D Cannot be determined
Explanation

The chain goes from metals to solids to liquids to gases, but each \'some\' statement only creates a partial overlap. We cannot definitively conclude some metals are gases.

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