CBSE Class 9 Science
Question 17 of 26
Improvement in Food Resources — Question 1
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Question Question 1
What are macro-nutrients and why are they called macronutrients?
The nutrients like nitrogen, phosphorus, potassium, calcium, magnesium and sulphur that are required by the crop in large quantity are called macro-nutrients. They are called so because they are consumed in large amount by the crops.