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1. What are MANY reasons how trees help our planet?

2. What are MANY reasons how trees help our planet?

3. what is the definition of eutrophication? how can eutrophication lead to algal bloom? why do bacteria break down raw sewage?

4. what is the definition of eutrophication? how can eutrophication lead to algal bloom? why do bacteria break down raw sewage?

5. What are the various stages involved in the treatment of sewage?? Hope u can help!! Thanks!!

6. What are the problems with using fossil fuels?

7. What are the problems with using fossil fuels?

8. any info on food chains please i have a mock GCSE exam in 3 days.

9. what, apart from extinction and soil erosion, are the effects deforestation has on the enviroment around the forest?

10. what, apart from extinction and soil erosion, are the effects deforestation has on the enviroment around the forest?

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