| Date | November 2013 | Marks available | 1 | Reference code | 13N.1.SL.TZ0.19 |
| Level | Standard level | Paper | Paper 1 | Time zone | TZ0 |
| Command term | Question number | 19 | Adapted from | N/A |
Question
What are examples of greenhouse gases?
A. Ethane and ozone
B. Methane and nitrogen
C. Methane and carbon dioxide
D. Ethane and oxygen
Markscheme
C
Examiners report
[N/A]
Syllabus sections
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