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| Pregunta | Respuesta |
| Dull black | Absorbs & emits infrared radiation best |
| Absorbs & emits infrared radiation worst | Shiny white or silver |
| All objects | Absorb & emit infrared radiation |
| Hotter objects | Emit more infrared radiation per second |
| Giveaway that a heat question is about infrared | Colour or texture |
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