8. Nitrogen Cycle to spec

A Level Environmental Science revision

Quiz by

Rate:

Last updated: May 17, 2025

You have not attempted this quiz yet.

More quiz info >>

First submitted	May 17, 2025
Times taken	11
Average score	33.3%
Report this quiz	Report

Quiz and answer stats >>

Friends stats >>

10:00

Enter answer here

/ 45 guessed

The quiz is paused. You have remaining.

Copied!

Scoring

You scored / = %

This beats or equals % of test takers also scored 100%

The average score is

Your high score is

Your fastest time is

more stats >>

friends stats >>

Keep scrolling down for answers and more stats ...

Hint

Answer

Nitrogen uses

Biomolecules

Nitrogen gas

NH3

Ammonia

NH4

Ammonium

NO2

Nitrite

NO3

Nitrate

NOx

Nitrous oxides

Order of N from atmosphere to absorption

N2 NH4 NO2 NO3

Order of N from dead organic matter to atmosphere

NH4 NO2 NO3 N2

Main processes

Fixation

Main processes

Ammonification

Main processes

Nitrification

Main processes

Absorption

Main processes

Leaching

Main processes

Denitrification

Main processes

Ionisation

Fixation

Chemical reduction

Method of nitrogen fixation

Free living nitrifying bacteria

Method of nitrogen fixation

Symbiotic root nodule bacteria

Free living bacteria

Azotobacter

Root nodule bacteria

Rhizobium

Ammonification

Decomposition

Nitrification

Oxidation

Absorption (4 words)

Plants absorb soluble ions

Human influences

Haber process

Human influences

Fertilisers

Human influences

Drainage

Human influences

Soil disturbance

Human influences

Legume cultivation

Human influences

Sewage disposal

Human influences

Combustion

Haber process: Manufacture of _______ by combining _______ ___ and ________ under ______ ___ and _______

Ammonia, nitrogen gas, hydrogen, immense heat, pressure

Drainage and soil disturbance incease ______ and __________.

Aeration, decomposition