Because to demolish you need less labor, just a simple machine meanwhile to build something you need to take time to plan it out, design, etc.
A chemical change has occurred because the wood has turned into a substance that can't be changed back to it's original form. The wood has turned to ash, chemical changes are non reversible.
Your body decided to heal that! but however depending on the depth and width of the cut the matter may heal more slowly! Ouch!! This is called cell reproduction. It happens when your body is hurt physically not emotionally! When this person was slicing the tomato if it was a deep long cut if they healed in a week then there may be a super human problem here! Notta bad thing but still kinda crazy! don't you think? So yessss I hope that this is helpful to you.
