Physical since you aren't actually changing whatever you are cutting or folding into something else.
Smell is a physical property. It it caused by small amounts of the airborne substance undergoing chemical reactions with receptors in your nose.The smell of perfume is a physical not a chemical
Mountains
The bubbles themselves are physical. What caused them might have been a physical change or a chemical change; it's impossible to say without more information.
A bitter taste can be caused by a chemical. Canned air contains a chemical bitterant that can cause this. Also mercury can cause a bitter taste in your mouth.
physical, because it can be easily reversed
Chemical Change
I am not sure if they were caused by folding
Producing heat is caused by a chemical process which results in physical changes. The cause is chemical. The effect is physical. :) :D
It is a physical change caused by chemicals. Chemical changes are phyiscal changes.
Most earthquakes are not caused by folding they are actually caused by faulting a sudden movement of land caused by friction.
Luminescence is caused by chemical reactions within the substance.
It is physical change
The alps were caused by folding
no a waterfall is caused by physical weathering
Chemical, caused by saliva, without saliva you cannot taste anything
Chemical, caused by saliva, without saliva you cannot taste anything
Large-scale folding of the earth's crust may be caused by what?