Explanation:Nutrients: The chemical components required for the growth and development of living organisms are called Nutrients.Plant Nutrients:Plants are also living organisms.They are the only producers who can make food (glucose) on their own by the process of photosynthesis.The plant also requires some elements in its ionic form or normal forms for the growth and development of its body and to perform various metabolic activities in them.Plant nutrients are also known as minerals or essential elements.Macro Nutrients:The nutrients which are required in large quantities than others are called macronutrients.Some of the common macronutrients are carbon, hydrogen, oxygen, nitrogen, phosphorus etc.?Micro Nutrients:The nutrients which are required in few quantities than others are called micronutrients.Some of the common micronutrients are iron, copper, chlorine, zinc etc.So, N, S and Fe are macronutrients.