Catherine looks at effects of volcanoes for your GCSE Geography exam. In this episode, she will look at the different primary and secondary effects of volcanic eruptions. Cathering goes through the effects of lava, rock and ash, as well as the damage pyroclastic flow can have. Suitable for AQA, OCR, Eduqas, Edexcel and OCR exam boards Ideal for preparing you for your GCSE Geography exam.

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