| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.SL.TZ1.25 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 25 | Adapted from | N/A |
Question
What is the phenomenon that best explains why greenhouse gases absorb infrared radiation?
A. Resonance
B. Interference
C. Refraction
D. Diffraction
Markscheme
A
Examiners report
[N/A]
Syllabus sections
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