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Phоtоperiоdism is
Cоnsider the fоllоwing conditionаl stаtement: If аll students pass the exam, then I will be happy. For each statement below, determine whether the statement: Is logically equivalent to the statement given above (always has the same truth value). Negates the statement given above (always has the opposite truth value). Is neither equivalent to nor negates the statement given above. The statements: Some student will not pass the exam or I will be happy. [A] All students will pass the exam but I will not be happy. [B] No student will pass the exam and I will be happy. [C] If I am not happy, then some student didn't pass the exam. [D]