Fertilisers - this chemical contain mineral salts that helps in the plant growth ,such as potassium, phosphates and nitrates , decomposers - break down manure and release the mineral salts , but this can take a long time , pesticides - this chemical kills pests , insecticides - this chemical kills insect pests, fungicides - this chemical kills fungi that causes plant diseases, herbicides - weedkillers , varieties - this is a group of plants that have been bred to have a certain characteristics , cross breeding - it's a way of creating a new variety , starch - glucose is broken down to make , iodine - the solution in which we test starch, benedict - this solution is used to test glucose ,

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