Importance of Fertilizers Learning App | Class 9 Biology MCQ e-Book PDF

Class 9 Biology MCQs (Grade 9) From Textbook

Class 9 Biology MCQs – Certification Test 447

Importance of Fertilizers MCQ (Question 447) – App & e-Book Download

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MCQ 447: The organic fertilizers can be derived from:

  1. animal materials only
  2. plant materials only
  3. carbon materials
  4. animal and plant materials

Importance of Fertilizers MCQ App & e-Book – Class 9 Biology Learning Guide

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