Keep track the history of the keyword to determine when a keyword is rising or down in popularity over time.
Machine learning is also increasingly helpful for sifting through and categorising huge amounts of data. This can help to create early warnings about risks of fraudulent or unsafe food.
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Quiz collated by Lauren Hirst.
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With the US celebrating 250 years of independence this summer, The Beast in Me star joked that the anniversary "rests squarely on [Wales'] shoulders" as he urged Americans to celebrate St David's Day on 1 March.