The warm Earth emits infrared radiation. Some gases absorb this radiation and re-emit it in all directions.
What happens during photosynthesis? - OCR 21st Century How do producers get the substances they need? - OCR 21st Century How do producers transport the substances they need? How are organisms in an ...
Teenagers across the UK will be receiving their GCSE grades this morning. School pupils will learn what they have achieved during their time in senior school. The vast majority of students taking ...
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