A break in which of the following would cause a secrion of bone to die

Osteonecrosis can be caused by disease or by severe trauma, such as a fracture or dislocation, that affects the blood supply to the bone. Osteonecrosis can also occur without trauma or disease.

Explanation:

in a word, a scientific question is testable. a testable question is one that asks about objects, organisms or events found in the world around it