Answer:
atom
Explanation:
Smallest particle of an element that identifies that element is an atom.
Answer:
The law of conservation of energy
Explanation:
A centimetre is 0.01 meters.
Light travels in a straight line because it doesn't usually interact with its medium. When it does it is called refraction.
The answer is difference in eletric potential. If there are 2 groups of electric potential and they are connected, the difference in potential we cause particles with charge to flow until the potential is equal. Resistance only determines rate of flow but doesnt initialy cause the flow.