What is a correct basis for identifying an essential mineral element?

A. उसकी कमी से plant life cycle complete नहीं कर पाता / Its absence prevents plant from completing life cycle

Step 1: Identify essentiality criterion. Step 2: In absence of an essential element a plant cannot complete normal growth and reproduction. Step 3: Remember essential means necessary for life cycle.

Step 1: essentiality criterion पहचानें। Step 2: Essential element की कमी से plant normal growth और reproduction complete नहीं कर पाता। Step 3: Essential means necessary for life cycle याद रखें।