Well, a physical change would be a change where the item is still the item!
So if you'er burning wood, you're changing the wood chemically!
If you cut your hair, it's still your hair..that's physical.
Ripping your shirt, is still your shirt... physical.
and Cutting down a tree, it's still a tree! Physicalllll.
So the correct answer would be A. Burning wood
Hope this helps. c:
