When there is a premise saying A cause B, For example.
A.
Premise(1): A Cause B
Premise(2). There is B
Conclusion: There is A
Is this a valid way of reasoning?
B. This is valid reasoning, right?
Premise(1): A Cause B
Premise(2). There is A
Conclusion: There is B
Effect (Premise): Five species of coral in the bay, including the mounds that existed for 200 years died.
Cause(Conclusion): Therefore, the blackwater incident was more serious and intense than before.
Answer Choice (D): (Defender AC) the mounds that existed for 200 years was "not" weaker last year than before.
Weakener: the mounds that existed for 200 years was weaker last year than before. (Alternative Explanation); If this is true, then the entire argument falls apart because Causation Logic is destroyed by exploring other sets of alternative explanations.