They may be changed because they may find evidence of some thing that will change their perspective on things.
It is an example of liquid. if thats what you are asking for...
friction is the resistance that one surface or object encounters when moving over another. Due to gravity pulling everything down things need to friction in order to move
i hope this helps :/
Answer:
leaf and a balloon is the correct answer
I think it’s D-decreases the amount of work.
