Micronutrients can be classified based on the presence of in their chemical structures. According to this classification system, vitamins are organic and minerals are inorganic.

Carbon

Explanation:

Micronutrients include elements or groups needed by the body in order to survive. These elements or groups include vitamins and minerals.  Micronutrients can be divided into four categories:

1. water-soluble vitamins

2. Fat-soluble vitamins

3. Macrominerals

4. Trace minerals

The answer is Vitamins and minerals

Explanation:

Nutrient molecules maintain/build human cells and tissue, power chemical reactions, and combat disease.

Micro nutrients can be divided into four categories:

Vitamins are organic compound which an organism requires but cannot synthesize by itself in the amount required.

Vitamins are organic compounds made by plants and animals which can be broken down by heat, acid or air. Where as, minerals are inorganic, found in soil or water and cannot be broken down.

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.