conservation for art is "preserving, fixing, or just restoring old art or other things like artifacts etc." (found in an article on www.msaconservation.com) it's most likely controversial because if something's old and valuable, people want to keep it in it's original form. (just a guess) but that's how it is in the art world.
Answer:
they lose energy, not gain
Explanation:
The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance lose energy during a change of state. ... Atoms gain energy as a solid changes to a liquid. If atoms energy during a change of state, they are pulled together by attractive forces and become more organized.
Hello~
U tube Might have somthing on it!
Ary~