Question 1:
(a) What is the meaning of macronutrient? Name five examples of macronutrients.
(b) What is the meaning of micronutrient? Name five examples of micronutrients.
(a) What is the meaning of macronutrient? Name five examples of macronutrients.
(b) What is the meaning of micronutrient? Name five examples of micronutrients.
Answer:
(a)
• Macronutrient is an element (or mineral) needed by plants in large quantities.
• Carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, magnesium and sulphur (any five)
(b)
• Micronutrient is an element (or mineral) needed by plants in small quantities.
• Boron, molybdenum, zinc, manganese, copper and iron (any five)
Question 2:
What is the importance of macronutrients and micronutrients to plants?
What is the importance of macronutrients and micronutrients to plants?
Answer:
Plants need macronutrients and micronutrients for healthy growth, development and reproduction.
Question 3:
Match the macronutrient with the effect of its deficiency on plant growth.
Match the macronutrient with the effect of its deficiency on plant growth.
Answer:
(a) Stunted growth of roots
(b) Brown spots on edges of leaves
(c) Small leaves which fall easily