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I was away from school and i have only got one higher tier resource booklet for science. there are 3 articles in the booklet (nuclear waste, therapeutic cloning= food adictives and obestiy) my teacher told us that one of the articles in the exam is going to be about bird flu and we studied the topic. so im now comfused on whether if i got all the things i need

Yeah there is only one ocr 21st century unit 4 ideas in context. which should have three articles: physic - nuclear waste: bury it and forget biology - leading scientist fakes is results chemistry - food addictive and obesity