Which of the following is an example of data integration?

Data integration is the process of combining data from different sources to provide a comprehensive view and facilitate analyses. The option that exemplifies this concept involves taking soil and water quality data and merging them for a more thorough examination. By doing so, one can identify relationships between soil and water quality, understand their interdependencies, and draw more insightful conclusions from the combined dataset.

The other options do not represent data integration. Changing the resolution of an image pertains to image processing rather than combining datasets. Converting a raster image to vector format is an act of data transformation, focusing on changing the data representation rather than integrating multiple sources of data. Simplifying data for presentation is more about data summarization and making it easier to understand, rather than integrating various datasets to form a cohesive analysis.