| Date | May 2013 | Marks available | 1 | Reference code | 13M.3.SL.TZ2.18 |
| Level | Standard level | Paper | Paper 3 | Time zone | Time zone 2 |
| Command term | State | Question number | 18 | Adapted from | N/A |
Question
State one soil condition that favours denitrification.
Markscheme
a. lack of oxygen / anaerobic conditions;
b. excess water / bog/marsh conditions;
Examiners report
Most gained the mark in a for anaerobic or boggy ground, with some being vague with for example ‘humid’ or ‘damp’.
Syllabus sections
Option C: Ecology and conservation » Option C: Ecology and conservation (Additional higher level topics) » C.6 Nitrogen and phosphorus cycles
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