| Date | May 2012 | Marks available | 1 | Reference code | 12M.1.SL.TZ2.28 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 28 | Adapted from | N/A |
Question
The property of the molecules of greenhouse gases which leads to their ability to absorb infrared radiation is their
A. resonant frequency.
B. speed of rotation.
C. total electric charge.
D. diameter.
Markscheme
A
Examiners report
Syllabus sections
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