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Nitrates are converted to nitrites in our digestive system.

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Health issues are associated with nitrates/nitrites because they are converted into nitrosamines, which are a known animal carcinogen. What preservative can be used to prevent this conversion?______

You go to the supermarket to pick up some fruit and vegetables for the week. The display of oranges contains beautiful vibrant coloured fruit but on closer inspection you find that they are stamped with the label "Colour Added". What synthetic food colouring has been added to the skin of the oranges?______

Fertilizers contain nutrients that are essential to plant growth. List the three nutrients that appear on the label of fertilizers:______ ______ ______

What is the name of the compound commonly used as a rich source of nitrogen in synthetic fertilizers that breaks down to form nitrous oxide, a gas associated with global warming?______

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