Which is stronger

concrete is definetly stronger than bone because if you want to break concrete you need big machines ,hammers , drillers etc

But if you want break a bone even a punch is enough.

If we remove iron from concrete, it is weaker than bones.

Its obvious...

The answer is concrete. one can break a bone by hitting a concrete wall or raisings, but the concrete wall or sculpture will never break.. lol

concrete is more stronger.

Bone is stronger, but concrete in itself is not stronger.but if it mixed with iron rods it becomes way stronger than our bones.

concrete

may be concrete

bone because the human begin can break the concrete with their hand .i have in reality 

I think it is concrete.

Infact, for size all bones are much stronger than concrete. About 8 times. They're flexible, lightweight and super hard. Yet will break if a lot of force is given. A thigh bone can withstand about a tonne of stress before snapping. This depending on a person's health. The lower joint of a femur, pretty much impossible to break with a hammer, yet hollow bones will break with a brick, slab of concrete or a hammer. Imagine a bit of concrete the size of a bone, it would break easily... Wouldn't it
http://wiki.answers.com/Q/What_human_bones_are_stronger_than_concrete

Bones are strong of course , but concrete would be much more stronger since there is also iron rod in it .Bones are also brittle while compared to concrete

Lol.. I guess if we hit our bones with concrete then concrete will survive and we will be hospitalized. :D So winner is concrete.

Concrete is more stronger than bones. When you try to break them your bone will break easily.

Yes, Concrete is much more stronger than Bones. Bones has certain limit to bear its strength, but Concrete is must more times stronger than bones.

Its concrete as our bones get fractured when we are hit hardly on it. B)