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Class 9
Biology :-NCERT Solution - Improvement In Food Resources

Page No 206:
Question 2:
How do plants get nutrients?


Answer:

Plants require sixteen essential nutrients from nature for their growth and development. All these nutrients are obtained from air, water, and soil. Soil is the major source of nutrients. Thirteen of these nutrients are available from soil. The remaining three nutrients (carbon, oxygen, and hydrogen) are obtained from air and water.