Chapter 13 Earth as a System: Energy, Matter, and Life - Part 1

What is denitrification?

Type: MCQ • Marks: 1
What is denitrification?
Options
A. Fixing nitrogen
B. Producing carbon dioxide
C. Absorbing water
D. Converting nitrates back into inert atmospheric nitrogen gas by soil bacteria
Explanation
Denitrifying bacteria complete the nitrogen cycle by releasing N₂ back into the atmosphere.
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)

Practice more

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

Purchase Full Access View full Test Series Browse Test Series
Login / Register
Chat on WhatsApp Go Back Top