Which statement accurately describes what happens when ice melts in terms of energy?
a)the ice releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from solid to liquid.
b)the ice releases energy which causes chemical bonds to break, changing the ice to water
c)the ice absorbs energy which causes chemical bonds to break, changing ice to water
d)the ice absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a solid to a liquid

the answer is d when the state of matter changes it's not a chem change

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.