Which property determines how well a solid resists breaking?

toughness

hardness

stress

strain

This would have to be strength or toughness.

Explanation:

No matter how you look at it, it is the strength or the toughness that keeps arock from easily being broken. Stress, strain, and hardness can easily break an object.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods