What happens in a subduction zone? a. Two plates slide past each other and cause earthquakes.
b. Two plates come together of different densities and one sinks under the other and melts.
c. Two oceanic plates diverge and create a ridge.
d. Two continental plates collide and form mountains.

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.