What do sound waves, light waves, and ocean waves all have in common?

a.
they all transfer energy.

b.
they are all electromagnetic waves.

c.
they all require a medium to travel.

d.
they are all mechanical waves.

it should be all of them because it asks if you included all of those in your answer

explanation:

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.