select the proper option and complete the statement: (single, all, double, ionic, carbon, give and take, hydrogen, multiple bond, share, organic, covalent) ……….is the essential element in all the organic compounds.

Common element in all the organic compounds is _______.

Common element in all the organic compounds is ____________

The element hydrogen is present in…….organic compounds.

Essential whorls in a flower

Enlist various essential elements requried for the growth of plants.

How are the terms 'critical concentration' and 'deficient different from each other in terms of, concentration of an essential element in plants? Can you find the values of 'critical concentration' and 'deficient' for minerals — Fe & Zn.

Water is an essential nutrient.

What are essential amino acids?

Name the macronutrient which is a component of all organic compounds but is not obtained from soil.