In classical conditioning, extinction of the learned response involves ; whereas in operant conditioning, extinction of a learned response involves

-disapperance of conditioned response when conditioned response is presented without unconditioned response

-disapperance of learned behavior after reinforcement disappears

Explanation:

Under classical conditioning, the diminishing of a conditioned response known as extinction occurs when an unconditioned stimulus (US) does not accompany a conditioned stimulus (CS) while in operant conditioning, extinction occurs as a result of no reinforcement.

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