Question

give examples for essential elements ​

Answer 1

Explanation:

To which symbol can be the peculiarities of Cascading  style

included after the name of tag?

Answer 2

Nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, boron, chlorine, iron, manganese, zinc, copper, molybdenum, and nickel. Other elements that have been proposed as candidates for essential or beneficial elements include chromium, vanadium, and titanium, although strong evidence is lacking at this time.