Question

Importance of micro-elements was recognized late
due to
(a) their toxicity
(b) presence as contaminants in macronutrients
(c) their absence in plant ash
(d) leakage from roots

Answer 1

Answer:

their absence in plant ash

Answer 2

Correct Answer is  (c)

Explanation:

    (c) Importance of micro-elements was recognized late their absence in plant Ash.

• Micronutrients are fundamental for plant development and assume a significant job in adjusted harvest nourishment.
• They incorporate boron (B), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), zinc (Zn), nickel (Ni) and chloride (Cl).  
• Plants additionally need such micronutrients as zinc, molybdenum, copper, manganese, cobalt, iron and boron.
• The most significant synthetic substances that plants need, without which they won't flourish, are the three macronutrients such as potassium, nitrogen and phosphorus.