Describe two uses of surfactants At least one must be something that was not described in the
passage For each example, explain how the
effects of the surfactant make it useful

a electronegativity decreases beacuse the size of nucleus is bigger.

it's c (engineer's do their work with mechanical stuff not on any living being)

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.