What is nitrogen fixation?

Type: MCQ • Marks: 1

A. Converting atmospheric nitrogen gas into usable nitrogen compounds (like nitrates/ammonia) by bacteria or lightning

B. Breathing in nitrogen

C. Destroying nitrogen in soil

D. Dissolving nitrogen in sea water

Explanation

Nitrogen-fixing bacteria (like Rhizobium) and lightning convert inert N₂ into bioavailable forms.

Want to attempt the full test series with a timer and instant score? Purchase the package to unlock the complete test. Purchase Now

Class 9th Science (MCQ)

This page is indexed for search so students can find questions directly from Google.

Welcome to TutorWale!