Question

tall the answer of 1. who is the first president of India ​

Answer 1

Answer:

Rajendra Prasad is our first president.............

Answer 2

Explanation:

$\huge{\fbox{Micro\:Nutrients}}$

➡ They are needed in very small amounts.

➡ They include iron, manganese, copper, molybdenum, zinc, boron, chlorine and nickel.

➡ Essential elements are also grouped into four categories on the basis of their functions. They are:-

◼ Components of biomolecules and structural elements of cells.

E.g. Carbon, Hydrogen, Oxygen,

Nitrogen.

◼ Components of energy-related chemical compounds .

E.g. Mg in chlorophyll and phosphorous in ATP.