Current Affairs

GK MCQs Section
Q. Which of the below is / are used as Biofertilizer(s)?
  1. Agaricus
  2. Nostoc
  3. Spirogyra
  4. Azospirillum
Select the correct option from the codes given below:
Answer: 2 and 4 only
Notes: Nostoc and Azospirillium are the organisms that are used as bio fertilizers. Nostoc is a blue green algae while Azospirillium is aerobic free-living nitrogen fixers which live in associative symbiosis.
Question Source: 📚This question has been sourced from GKToday's "40000+ GK / General Studies MCQs for SSC & State PCS Exams" App Exclusive Course in GKToday Android Application which provides more than 40K General Knowledge and General Studies questions with explanations asked in all Competitive Exams of India. Download the app here.
📌 Question Number: 56 in 6. Agriculture, Irrigation, Seeds, Fertilizers and other Inputs in the above course in App.

This Question is Also Available in:

हिन्दीಕನ್ನಡ