For example, she was explaining her results to the public. The same study, written to appear in Popular Science, would need to explain why it matters that carbon and nitrogen differently influence plant root length and structure. The researcher might, for example, hypothesize that overuse of synthetic, nitrogen-based fertilizers on agricultural plants, such as carrots, could reduce the size or density of the crop yield. A conventional farming audience, or an audience interested in sustainable farming might differently interpret this representation of the research differently than the scientific audience reading the scientific article covering the same research and data. The difference lies in the purpose for which the writer is interpreting the data and how she must represent what is at issue, given the conventions and expectations of the genre of scientific article, versus popular news coverage of scientific research.