Home/ Questions/Q 552575
Next
In Process
Piyush365
  • 1
Asked: 2026-10-15T07:02:29+00:00 In:

Explain the processes involved in the nitrogen cycle. How would life on Earth be affected if nitrogen were not cycled?

  • 1

The cycle includes nitrogen fixation, nitrification, assimilation, ammonification and denitrification. Without cycling, atmospheric nitrogen would remain unassimilated, halting plant protein synthesis and causing famine and complete biosphere collapse.

CBSE Class 9 Science Chapter 13 Earth as a System: Energy, Matter and Life Solutions

NCERT Class 9 Science Exploration Chapter 13 Question Answer

class 9 science exploration chapter 13 earth as a system (new book)class 9 science exploration chapter 13 solutionsearth as a system: energyhow would life on earth be affected if nitrogen were not cycledmatter and life question answerprocesses involved in the nitrogen cycle
Share

    1 Answer

    1. (i) Cycle processes: Atmospheric nitrogen is fixed into ammonia by bacteria, oxidized to nitrites and nitrates by nitrifying microbes, assimilated into plant proteins, decomposed into ammonia and converted back into nitrogen gas by denitrifying bacteria. (ii) Ecological impact: Without cycling, usable nitrogen compounds would exhaust completely from soils, halting protein and nucleic acid production across all plants and causing food webs to collapse.

       

      For more NCERT Solutions of Class 9 Science Exploration Chapter 13 Earth as a System: Energy, Matter and Life Question Answer (2026-27)

      https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-13/

      • 0
    Leave an answer

    Leave an answer

    Browse