Explain why it is important to eat the wet sand before heating the iron wool​

Iron is a metal.

Iron wool is made up of thin strands of

iron loosely bundled together.

Your teacher has attached a piece of

iron wool to a see-saw balance. At the

other end of the see-saw is a piece of

Plasticine.

Iron wool can combust. Your teacher is

going to make the iron wool combust by

heating it.

If there is a change in mass, the see-saw

will either tip to the left or to the right.

Explanation:

huh,eat wet sand b4heating iron wool??

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.