Edexcel OLevel Biology revision notes

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Lesson

Lesson-4.4.5- understand the biological consequences of pollution of water by sewage.

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Lesson-4.4.4- understand how an increase in greenhouse gases results in an enhanced greenhouse effect and that this may lead to global warming and its consequences.Previous Lesson-4.4.6- understand the biological consequences of eutrophication caused by leached minerals from fertiliser.Next