Explanation:

- The phrase "The broken parts of objects found in an ancient site" typically refers to remnants or pieces left from something that once existed.

1. Defects: This refers to imperfections or flaws in an object or system. It doesn’t relate to ancient objects or sites directly.

2. Destruction: This is the act of causing so much damage to something that it cannot be repaired. It emphasizes the process, not the remnants or parts left behind.

3. Ruins : This refers to the remaining pieces of structures, especially those found at ancient sites, fitting the given description well.

4. Repairs: This involves fixing or restoring something that is broken. It does not relate to the original phrase.