Which of the following statements about density is NOT true? Group of answer choices

Density can be used to determine the identity of a substance.

Density is an extensive property of matter.

Density is an intensive property of matter.

Density is the ratio of two extensive properties.

Explanation:

because density is an INTENSIVE PROPERTY not an EXTENSIVE.

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.