Verified answer

Resposta:

2. who runs away from home.

3. that were hanging on the wall.

4. which cannot be explained.

5. who has stayed there.

6. that happened in the past.

7. who developed the theory of relativity.

8. which can support life.

Explicação:

A propósito, todos os exemplos acima poderiam ter o relativo "that" já que nenhuma dessas orações é do tipo non-defining