Final answer:
Carbon is not a micronutrient but a macronutrient, required in much larger amounts than micronutrients such as zinc, iron, and copper.
Therefore the correct answer is option is c) carbon
Step-by-step explanation:
The element that is not a micronutrient among the options listed is carbon (C). Micronutrients are essential elements required by organisms in small quantities. They are crucial for various physiological and biochemical processes, including acting as co-factors for enzymes. Some examples of micronutrients are zinc (Zn), iron (Fe), manganese (Mn), copper (Cu), and molybdenum (Mo), among others.
Carbon, however, is a macronutrient, which is required in larger amounts as it forms the backbone of organic molecules such as carbohydrates, lipids, and proteins. Therefore, the correct answer to the multiple-choice question of which element is not a micronutrient is 'C. Carbon'.