How many elements have been found to be essential for plants?

How many macronutrients are absorbed from the soil in the form of minerals?

Explain the types of mineral elements with examples.

Which of the following is considered to be the element between macro-nutrients and micro-nutrients?

Which of the following is an essential mineral element that is not a constituent of any enzyme but stimulates the activity of many enzymes?

Which of the following elements can be considered as macronutrients for plants?