Which of the following is not a characteristic of
gases?
Select one:
a. high density
O b. compressibility
c. fills container completely
d. transparency

"the periodic table is arranged in order of atomic number."

the answers would be

the first one and the second one

16

explanation:

the marks go by 4s

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.