Does the following passage contain a fused sentence error?

He was shocked by that moment Fyodor remembered it for the rest of his life.

No, the passage does not contain a fused sentence error. The separate clauses "He was shocked by that moment" and "Fyodor remembered it for the rest of his life" are distinct, and the period between them indicates a clear break in thought.

Yes, the following passage contains a fused sentence error. A fused sentence, also known as a run-on sentence, occurs when two independent clauses are joined together without any punctuation or conjunction to separate them. In this case, the passage combines two independent clauses: "He was shocked by that moment" and "Fyodor remembered it for the rest of his life." To correct the fused sentence error, you can either separate the two independent clauses into separate sentences or use appropriate punctuation or conjunction to join them.