what are two pure substances that whould make a mixure and could then be separated from the mixure with a magnet

We can separate iron from a mixture of sand and iron, as only the iron is attracted to the magnet.

Explanation:

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

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.