What is electromagnetic radiation? A:as waves that vary in wavelength
b:light waves which are waves of energy
c:all types of electromagnetic radiation arranged by wavelength
d:the more wavelength in a light wave in a given period of time the higher energy level

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.

the answer is symmetrical : )

i think tornado but not 100%